You do not have permission to edit this page, for the following reasons:

This IP address has been blocked from editing Wikipedia.
This does not affect your ability to read Wikipedia pages.
Most people who see this message have done nothing wrong. Some kinds of blocks restrict editing from specific service providers or telecom companies in response to recent abuse or vandalism, and can sometimes affect other users who are unrelated to that abuse. Review the information below for assistance if you do not believe that you have done anything wrong.

The IP address or range 100.27.0.0/16 has been blocked (disabled) by ‪Blablubbs‬ for the following reason(s):

The IP address that you are currently using has been blocked because it is believed to be a web host provider or colocation provider. To prevent abuse, web hosts and colocation providers may be blocked from editing Wikipedia.
You will not be able to edit Wikipedia using a web host or colocation provider because it hides your IP address, much like a proxy or VPN.
We recommend that you attempt to use another connection to edit. For example, if you use a proxy or VPN to connect to the internet, turn it off when editing Wikipedia. If you edit using a mobile connection, try using a Wi-Fi connection, and vice versa. If you are using a corporate internet connection, switch to a different Wi-Fi network. If you have a Wikipedia account, please log in.
If you do not have any other way to edit Wikipedia, you will need to request an IP block exemption.

How to appeal if you are confident that your connection does not use a colocation provider's IP address:
If you are confident that you are not using a web host, you may appeal this block by adding the following text on your talk page: ((unblock|reason=Caught by a colocation web host block but this host or IP is not a web host. My IP address is _______. Place any further information here. ~~~~)). You must fill in the blank with your IP address for this block to be investigated. Your IP address can be determined here. Alternatively, if you wish to keep your IP address private you can use the unblock ticket request system. There are several reasons you might be editing using the IP address of a web host or colocation provider (such as if you are using VPN software or a business network); please use this method of appeal only if you think your IP address is in fact not a web host or colocation provider.

Administrators: The IP block exemption user right should only be applied to allow users to edit using web host in exceptional circumstances, and requests should usually be directed to the functionaries team via email. If you intend to give the IPBE user right, a CheckUser needs to take a look at the account. This can be requested most easily at SPI Quick Checkuser Requests. Unblocking an IP or IP range with this template is highly discouraged without at least contacting the blocking administrator.

This block will expire on 11:06, 19 October 2026. Your current IP address is 100.27.44.182.

Even when blocked, you will usually still be able to edit your user talk page, as well as email administrators and other editors.

For information on how to proceed, please read the FAQ for blocked users and the guideline on block appeals. The guide to appealing blocks may also be helpful.

Other useful links: Blocking policy · Help:I have been blocked
This IP address range has been globally blocked.
This does not affect your ability to read Wikipedia pages.
Most people who see this message have done nothing wrong. Some kinds of blocks restrict editing from specific service providers or telecom companies in response to recent abuse or vandalism, and can sometimes affect other users who are unrelated to that abuse. Review the information below for assistance if you do not believe that you have done anything wrong.

This block affects editing on all Wikimedia wikis.
The IP address or range 100.27.0.0/16 has been globally blocked (disabled) by ‪Jon Kolbert‬ for the following reason(s):

Open proxy/Webhost: See the help page if you are affected

This block will expire on 05:40, 21 February 2029. Your current IP address is 100.27.44.182.

Even while globally blocked, you will usually still be able to edit pages on Meta-Wiki.

If you believe you were blocked by mistake, you can find additional information and instructions in the No open proxies global policy. Otherwise, to discuss the block please post a request for review on Meta-Wiki. You could also send an email to the stewards VRT queue at stewards@wikimedia.org including all above details.

Other useful links: Global blocks · Help:I have been blocked

You can view and copy the source of this page:

((short description|Rimless bottlenecked intermediate rifle cartridge))
((refimprove|date=January 2013))
((Infobox firearm cartridge
| name = .280 British
| image = 280british.jpg
| image_size = 240px
| caption = Various .280 Ball Cartridges. Orange-cased cartridge is made out of [[aluminium]].
| origin = [[United Kingdom]]
| type = Rifle
<!-- Service history -->
| service = 
| used_by = British
| wars = 
<!-- Production history -->
| designer = British Army
| design_date = 1945
| manufacturer = 
| production_date = 
| number = 
| variants = 
<!-- Specifications -->
| is_SI_specs = 
| parent = 
| case_type = rimless, bottlenecked<ref>''The Handloader's Manual of Cartridge Conversions'', Book by John J. Donnelly, Stoeger Publishing, 1987, ((ISBN|978-0-88317-269-8)) p. 286</ref>
| bullet = .284
| neck = .313
| shoulder = .448
| base = .470
| rim_dia = .473
| rim_thick = .049
| case_length = 1.71
| length = 2.54
| rifling = 1:8.66 in (220 mm)
| primer = 
| max_pressure = 45000
<!-- Ballistic performance -->
| is_SI_ballistics = 
| bw1 = 139
| btype1 = Ball
| vel1 = 2270
| en1 = 1595
| bw2 = 140
| btype2 = Ball<br> 7 mm Mk 1Z 
| vel2 = 2549
| en2 = 2019
| bw3 = 
| btype3 = 
| vel3 = 
| en3 = 
| bw4 = 
| btype4 = 
| vel4 = 
| en4 = 
| bw5 = 
| btype5 = 
| vel5 = 
| en5 = 
| test_barrel_length = 
| balsrc = Cartridges of the World <ref>''Cartridges of the World 11th Edition'', Book by Frank C. Barnes, Edited by Stan Skinner, Gun Digest Books, 2006, ((ISBN|0-89689-297-2)) p.349</ref>
))

The '''.280 British''' was an experimental [[Rim (firearms)|rimless]] bottlenecked [[Intermediate cartridge|intermediate]] [[rifle]] [[Cartridge (firearms)|cartridge]].  It was later designated '''7&nbsp;mm MK1Z''', and has also been known as '''.280/30''', '''.280 Enfield''', '''7&nbsp;mm FN Short''' and '''7×43mm'''.

Like most armed forces in the immediate post-[[World War II]] era, the [[British Army]] began experimenting with lighter rounds after meeting the German [[StG 44]] in combat. The Army began development in the late 1940s, with subsequent help from [[FN Herstal|Fabrique Nationale]] in [[Belgium]] and the [[Canadian Army]]. The .280 British was tested in a variety of rifles and [[machine gun]]s including the [[EM-2 rifle|EM-2]], [[Lee–Enfield]], [[FN FAL]], [[Bren light machine gun|Bren]], [[M1 Garand]] and [[Taden gun]].

Despite its success as an intermediate cartridge, .280 British was not considered powerful enough by the [[United States Army|U.S. Army]] and several variants of the .280 British were created in an attempt to appease the U.S. Army. However, the U.S. Army continued to reject these variants, ultimately adopting the cartridge that was then designated the [[7.62×51mm NATO]].

==History==
===Impetus===
During [[World War II]] the standard British rifle and [[machine gun]] round was the venerable [[.303 British]]. Efforts to replace the .303 with a more modern round predated even [[World War I]], but a series of events kept it in service in spite of its rimmed design causing a number of alleged problems((Citation needed|date=September 2020)).

During the war the Allies encountered the new [[7.92×33mm Kurz|7.92 "Kurz"]] cartridge on the battlefield and noted its effectiveness. The Kurz was an "intermediate power" round, less than a conventional rifle round like the .303, but more than pistol rounds like the [[9mm Parabellum]]. This gave the Kurz rifle-like performance in close-range encounters, while still having a small enough recoil that it could be fired in fully [[Automatic firearm|automatic fire]]. This led British [[small arms]] designers to begin the development of their own intermediate round, but increased the range requirement so as to be effective out to 400 yards.

To the end of achieving the best cartridge, the "Ideal Cartridge Panel," under the direction of Dr. Beeching, started work in 1945, and by 1947 released their findings.<ref>”EM-2 Concept and development – A Rifle ahead of its time.” By Thomas B. Dugalby, Collector Grade Publications, Toronto, Canada, 1980</ref>  They suggested that the ideal cartridge would be .276 to .280 inch (6.8 to 7 mm) in diameter, weigh between 130 and 140 grains (8.4 to 9 g) and have a muzzle velocity of approximately 2,400 fps (730 m/s).  The .280 cartridge was developed under the direction of Brigadier Aubrey Dixon, and approved for testing in mid-1947, a similar design, the [[.270 British|.270]], was released in October of the same year. Both designations reflect the groove diameter of the [[rifling]]; the .276 [[bullet]]'s actual diameter was ((convert|.284|in|mm)). Work of the .270 was ceased the next year in order to concentrate efforts on the .280.

The .280 cartridge at this stage had a rim diameter of .458 inch (11.6 mm), was 1.70 inches long (43 mm), and fired a 130 grain (8.4 g) bullet at 2,270 fps (692 m/s). In 1949 the rim diameter was increased to .473 inch (12 mm), the same as the United States' standard Caliber .30 ammunition, and redesignated .280/30, the bullet was changed to a heavier ((convert|139|gr|g|1|abbr=on)), with a mild steel core still at 2270 fps.  In addition to the ball cartridge there was [[armor piercing]] and [[armor piercing-incendiary]] both with a 130 gr projectiles at 2,200 fps, tracer, with a 115 gr projectile at 2,250 fps, and an observing and a grenade firing cartridges.

===NATO Competition===

In early 1950, the .280 cartridge was tested by the Development and Proof Services at [[Aberdeen Proving Grounds]], [[Maryland]], and the results were disappointing.<ref>((cite tech report |url=http://www.dtic.mil/dtic/tr/fulltext/u2/896859.pdf |title=A Comparison of United Kingdom and United States Ammunition for Lightweight Weapons, Ninth Report of Project TS2-2015, Volume I |date=5 June 1950 |publisher=Development and Proof Services, Aberdeen Proving Grounds Maryland |pages=18-37 |access-date=7 April 2016 |archive-date=10 May 2017 |archive-url=https://web.archive.org/web/20170510235605/http://www.dtic.mil/dtic/tr/fulltext/u2/896859.pdf |url-status=dead ))</ref>   The demonstrated accuracy from a [[Mann barrel]] was very poor, with an extreme spread of ((convert|43.6|in|cm|1|abbr=on)) at ((convert|600|yd|m|1|abbr=on)), compared to the ((convert|16|in|cm|1|abbr=on)) of the T65, the armor piercing (AP) round would have trouble reliably penetrating a standard US M12 protective vest at 800 yards (something the T65 Ball round could reliably achieve), and the AP performance against hardened armor plate was about half that of the T65 AP round. And, the low muzzle velocity gave a very arcing trajectory, with a maximum ordinate of over 19 inches at 400 yards, and 10 inches at 300 yards, giving an unacceptably wide “safe zone”.  The accuracy performance with the steel core ball was so bad, the United Kingdom representative requested that a lot of 130 gr lead core and a lot of 140 gr lead core ball ammunition be used to evaluate accuracy.  These two additional lots did better with extreme spreads of 21.0 inches and 21.6 inches respectively, but were still behind the T65.  This was not particularly surprising as the T65 had a three-year head start, development beginning is 1944.

Concurrently with the Aberdeen tests, the US Army Field Forces Board No, 3 (dealing with Infantry equipment) was holding their own tests at Fort Benning Georgia.<ref>”Report of Joint Test of United Kingdom and United States Lightweight Rifles and Ammunition Therefor, Including Implimenting action by A.F.F Board No. 3, Vol. 1," dated 27 October 1950, Army Field Forces Board No. 3, Fort Benning, Georgia</ref> Performance at Fort Benning was better using the lead core ammunition, but still lagged behind the T65, with extreme spreads of 12 inches at 600 yards versus 9 inches, and poor AP performance.

In spite of these poor showings in October 1950 Board No. 3 recommended: 
 “That development of small arms ammunition, lightweight rifles and machine guns be carried out in U.S. .276 caliber (British .280 caliber)."
This recommendation was strongly objected to by three prominent members of the Board, Colonels Burton L. Lucas, C.W. Pence, and Edward A. Chazal, <ref>”. . . The following members of the Army Field Forces Board No. 3 non-concur in the recommendation that the development of small arms ammunition, lightweight rifles and machine guns be carried out in U.S. caliber .276 (British .280 caliber). . . There is no objection to a .280 caliber as such, and it appears to offer a reduction in weight and bulk, however, the caliber selected should be that which will provide the best performance.” Minority Report to Report of Test of Project No. 2231</ref>  as well as the entire Field Forces Board No. 1 (Engineers), the Engineering Research and Development Laboratories went even further, stating that in their opinion, the British and Canadians should adopt the M1 and the U.S. Caliber .30 ammunition.  In the end, the recommendation was not acted upon, and development of the T65 continued.

The British attempted to improve the performance by seating the bullet less deep in the case allowing for a larger propellant charge, and substituting a lower drag flat based bullet of FN design.  These changes brought the velocity up to 2,595 fps, this was what was adopted as 7mm Mark 1z in 1951.  However, by this time the T65 cartridge had also been improved going from a 135 gr projectile at 2750 fps, to a 150 gr projectile launched at the same velocity, thus maintaining the performance gap.   

In mid-1951, a joint meeting between the US, the UK, Canada and France was held to discuss small arms standardization.  The US maintained the position that the .280 fell short of requirements, The French preferred the T65, as did Canada, however was willing to accept the .280 if the US did. And, even the British began to back pedal, suggesting that both be adopted.  By September 1951, the NATO Standing Group agreed on a set of military characteristics of required performance for new small arms ammunition.  Testing of the British 7mm, Mk 1z fell well short. <<ref>>”America and Britain  - Two Nations Separated by a Common Cartridge,” |url= https://slideplayer.com/slide/1678011/|<</ref>>

A change of government meant that the 7&nbsp;mm, EM-2 and [[Taden gun]] projects were abandoned soon afterwards by [[Winston Churchill]], who returned as the [[prime minister]] who desired commonality between the NATO countries. Small amounts of .280 British [[ammunition]] were later produced during the 1960s for various small arms trials.

===After .280===

In the late 1960s, a version of the .280 British was created using a 6.25&nbsp;mm bullet in a necked-down .280 British case.  It was designed in response to experiments in the U.K. trying to find an ideal military small-arms round.  Large caliber bullets were calculated to need more energy to penetrate various levels of body armor to inflict disabling wounds on soldiers.  Out of several "optimum solutions" ranging from 4.5&nbsp;mm to 7&nbsp;mm, the 6.25&nbsp;mm was the preferred solution.  The ((convert|100|gr|g|abbr=on)) bullet had a muzzle velocity of ((convert|2,680|ft/s|m/s|abbr=on)) and ((convert|2,160|J|ftlb|abbr=on)) of muzzle energy.  While the 7.62×51mm NATO required ((convert|700|J|ftlb)) of force on impact to penetrate helmets and heavy body armor, the 6.25&nbsp;mm required only ((convert|580|J|ftlb)) of impact force to deliver the same penetration effects out to 600&nbsp;m.  It remained effective for a longer distance and produced recoil closer to that of the 5.56×45mm NATO.<ref>((citation |url=http://www.quarryhs.co.uk/Assault.htm |title=ASSAULT RIFLES AND THEIR AMMUNITION: HISTORY AND PROSPECTS |first=Anthony G |last=Williams |date=November 2014 |access-date=2014-11-09 |archive-date=2017-11-05 |archive-url=https://web.archive.org/web/20171105042707/http://www.quarryhs.co.uk/Assault.htm |url-status=dead ))</ref> However, it was not designed for very long range and its bullet was relatively light.<ref>((Cite web |url=http://www.quarryhs.co.uk/The%20Next%20Generation.htm |title=The Case for a General-Purpose Rifle and Machine Gun Cartridge (GPC) |first=Anthony G |last=Williams |access-date=2014-11-09 |archive-url=https://web.archive.org/web/20141109212356/http://www.quarryhs.co.uk/The%20Next%20Generation.htm |archive-date=2014-11-09 |url-status=dead ))</ref> Testing of the 6.25×43mm was conducted from 1969 to 1971, when development ceased in favor of the smaller [[4.85×49mm]].<ref>[http://militarycartridges.nl/uk/6_25mm.htm 6.25x43mm Experimental] - Militarycartridges.nl</ref>

==Specifications==
{| class=wikitable style="font-size: 9pt; text-align:center"
|-
! Name || Bullet Diameter || Case Length || Rim || Base || Shoulder || Neck  || OAL || MV || Bullet Weight
|-
| .280 British ||((convert|7.214|mm|in|abbr=on)) || ((convert|43.434|mm|in|abbr=on)) ||((convert|12.01|mm|in|abbr=on)) for the .280/30<br>((convert|11.633|mm|in|abbr=on)) for the .280 British ||- ||- ||- ||((convert|64.516|mm|in|abbr=on)) || Approx. ((convert|2500|ft/s|m/s|-1|abbr=on)) with ((convert|140|gr|g|sing=on)) bullet|| ((convert|130|–|140|gr|g|abbr=on))
|}

Types of bullets and colours of tips:
*AP (((convert|130|gr|g|disp=or|abbr=on)))
*API (((convert|130|gr|g|disp=or|abbr=on))):  black
*Ball (((convert|130|-|140|gr|g|disp=or|abbr=on))): plain (unmarked), green, pink, yellow, brown
*Observation (((convert|130|gr|g|disp=or|abbr=on))) (((convert|6|gr|g|disp=or|abbr=on)) WP): red
*Tracer (((convert|130|gr|g|disp=or|abbr=on))): white

Note: Most cartridges have been observed with a purple annulus. Several experimental cartridge cases were made out of [[aluminium]], in various colors including orange.

Known manufacturers:
*[[ROF Radway Green|Radway Green]]
*[[FN Herstal|Fabrique Nationale]]
*[[Kynoch]]

==Performance==
The following comparisons  are excerpts from a manual published by the "Small Arms Group Armament Design Establishment" from the Ministry of Supply:<ref>Reprinted by Dugelby, Thomas B.. ''EM-2 Concept & Design; a rifle ahead of its time'', Collector Grade Publications, 1980, p. 247</ref>

{| class=wikitable style="font-size: 9pt; text-align:center"
|-
! 
!.280 British
!.303 British Mark VII
!.30-06 Springfield
|-
|Bullet weight
|((convert|139|gr|g|disp=or|abbr=on))
|((convert|174|gr|g|disp=or|abbr=on))
|((convert|166|gr|g|disp=or|abbr=on))
|-
| Muzzle velocity
| ((convert|2500|ft/s|m/s|disp=or|abbr=on))
| ((convert|2456|ft/s|m/s|disp=or|abbr=on))
| ((convert|2770|ft/s|m/s|disp=or|abbr=on))
|-
|Timber penetration at ((convert|2000|yd|m|0))
| ((convert|2.9|in|mm|disp=or|abbr=on))
| ((convert|2.4|in|mm|disp=or|abbr=on))
| ((convert|1.6|in|mm|disp=or|abbr=on))
|-
|Timber penetration at ((convert|100|yd|m|0)) 
|((convert|45|in|cm|0|disp=or|abbr=on))
|((convert|42|in|cm|0|disp=or|abbr=on))
|((convert|47|in|cm|0|disp=or|abbr=on))
|-
|Range for penetration of airborne type steel helmet 
|((convert|1000|yd|m|0|disp=or|abbr=on))
|((convert|900|yd|m|0|disp=or|abbr=on)) 
|((convert|1600|yd|m|0|disp=or|abbr=on))
|-
|Vertex height for ((convert|600|yd|m|0|sing=on)) range
|((convert|3.3|ft|cm|0|disp=or|abbr=on))
|((convert|3.1|ft|cm|0|disp=or|abbr=on))
|((convert|3|ft|cm|0|disp=or|abbr=on))
|-
|Recoil energy per round
|((convert|7.4|ftlbf|J|disp=or|abbr=on)) with [[EM-2 rifle]] 
|((convert|11|ftlbf|J|disp=or|abbr=on)) with [[Lee–Enfield|No.4 Rifle]] 
|((convert|14.4|ftlbf|J|disp=or|abbr=on)) with [[M1 Garand]]
|-
|}

==Variants==
*'''[[.270 British]]''': Designed at the same time as the .280 British . It has a slightly smaller bullet diameter of ((convert|.279|in|mm|abbr=on)) (versus ((convert|.284|in|mm|disp=or|abbr=on)) for the .280) but a lighter bullet (((convert|93|to|100|gr|g|disp=or|abbr=on))) with a greater muzzle velocity (((convert|2750|–|2800|ft/s|m/s|disp=or|abbr=on))), longer case (((convert|1.8|in|mm|disp=or|abbr=on))) and shorter overall length (((convert|2.45|in|mm|disp=or|abbr=on))). Research was abandoned in 1948. 
*'''7&nbsp;mm "Optimum"''': The original .280 British round with the bullet seated less deeply, giving an overall length of ((convert|2.6|in|mm|abbr=on)).
*'''7&nbsp;mm "High Velocity"''': Longer case (((convert|1.95|in|mm|disp=or|abbr=on))), with an overall length of ((convert|2.79|in|mm|abbr=on)). Similar ((convert|140|gr|g|sing=on)) bullet fired at ((convert|2750|ft/s|m/s|0|abbr=on)). 
*'''7&nbsp;mm "Compromise"''' (aka T65/7&nbsp;mm): Necked down T65 (7.62×51mm NATO) to 7&nbsp;mm. Case length ((convert|2|in|mm|abbr=on)), overall length ((convert|2.8|in|mm|abbr=on)), similar ((convert|140|gr|g|sing=on)) bullet fired at ((convert|2800|ft/s|m/s|-1|abbr=on)). 
*'''7&nbsp;mm "Second Optimum"''' (7×49mm): Designed by FN. Also known as the 7&nbsp;mm "Medium" and the 7&nbsp;mm "Liviano". FN would later sell FAL rifles chambered in this calibre along with a sizeable amount of ammunition to [[Venezuela]]. Longer case (((convert|1.935|in|mm|disp=or|abbr=on))) with an overall length of ((convert|2.78|in|mm|abbr=on)). ((convert|140|gr|g|sing=on)) bullet fired at ((convert|2755|ft/s|m/s|1|abbr=on)).
*'''6.25&nbsp;mm''' (6.25×43mm): A British experimental cartridge designed during the early 1970s, using the .280/30 as a parent case, which was necked down to fit a smaller bullet.

==Comparable cartridges==
[[File:280britishcompare.jpg|thumb|right|From left to right: [[6mm SAW]], [[6.5mm Grendel]], [[6.8mm SPC]], [[7mm Benchrest Remington]], .280/30 British, [[7 mm-08]], [[7mm Second Optimum]] (Liviano), [[.276 Pedersen]],  [[.308×1.5-inch Barnes|.308×1.75"]], 7.62×51mm NATO.]]
For .280 British:
* 7×44mm Danish, a Danish experimental cartridge fired by the [[Weibel M/1932]] tested in 1936. 
* [[7mm BR Remington]], a [[wildcat cartridge]], at one time produced by [[Remington Arms]])
* [[.308×1.5-inch Barnes]] and its necked-down 7&nbsp;mm variant

For 7&nbsp;mm HV, 7&nbsp;mm Compromise, 7&nbsp;mm Second Optimum:
* [[7mm-08 Remington]]

==See also==
*[[EM-2 rifle]]
*[[BSA 28P|BSA 28P rifle]]
*[[Taden gun]]
*[[7 mm caliber]] - other 7&nbsp;mm cartridges
*[[Table of handgun and rifle cartridges]]

==References==
((reflist))

*((cite book | last = Dugelby | first = Thomas B. | year = 1980 | title = EM2: Concept and Design | publisher = Collector Grade Publications | location = Toronto ))
*((cite book | last = Labbett | first = P |author2= P.J.F Mead  | title = Technical Ammunition Guide: British 7&nbsp;mm Ammunition))
*((cite book | last = Stevens | first = R. Blake | year = 1993 | title = The FAL rifle | publisher = Collector Grade Publications | location = Toronto | isbn = 0-88935-168-6  ))
*((cite book | last = Popenker | first = Maxim |author2= Anthony G. Willams  | year = 2005 | title = Assault Rifle | publisher = Crowood Press Ltd | location = Ramsbury | isbn = 1-86126-700-2 ))

==External links==
((Commons category))

*[http://www.cruffler.com/trivia-September99.html 7.62 NATO Contemporaries]
*[http://www.municion.org/7x43/7x43.htm .280/ 7×43 mm Dimensions (Spanish)] ((Webarchive|url=https://web.archive.org/web/20120705221125/http://www.municion.org/7x43/7x43.htm |date=2012-07-05 ))
*[http://raigap.livejournal.com/102391.html BSA 28P rifle]
*[http://www.dtic.mil/dtic/tr/fulltext/u2/896859.pdf A Comparison of United Kingdom and United States Ammunition for Lightweight Weapoens, Ninth Report of Project TS2-2015, Volume I, 5 June 1950, Development and Proof Services, Aberdeen Proving Grounds Maryland] ((Webarchive|url=https://web.archive.org/web/20170510235605/http://www.dtic.mil/dtic/tr/fulltext/u2/896859.pdf |date=10 May 2017 ))
* [https://armamentresearch.com/a-cartridge-in-brief-280-british/ A Cartridge in Brief: .280 British, Jack Dutschke, ARES, 6 June 2018]

((DEFAULTSORT:280))
[[Category:Pistol and rifle cartridges]]
[[Category:Experimental cartridges]]
[[Category:British firearm cartridges]]

Pages transcluded onto the current version of this page (help):

.280 British (edit)
Template:Ambox (view source) (template editor protected)
Template:Br separated entries (view source) (template editor protected)
Template:Catalog lookup link (view source) (template editor protected)
Template:Category handler (view source) (protected)
Template:Citation (view source) (protected)
Template:Citation needed (view source) (protected)
Template:Cite book (view source) (protected)
Template:Cite tech report (view source) (semi-protected)
Template:Cite web (view source) (protected)
Template:Commons category (view source) (template editor protected)
Template:Convert (view source) (template editor protected)
Template:Cvt (view source) (template editor protected)
Template:Delink (view source) (protected)
Template:Find sources mainspace (view source) (template editor protected)
Template:Fix (view source) (protected)
Template:Fix/category (view source) (protected)
Template:ISBN (view source) (template editor protected)
Template:If then show (view source) (template editor protected)
Template:Infobox (view source) (template editor protected)
Template:Infobox firearm cartridge (view source) (semi-protected)
Template:Infobox firearm cartridge/ballistics (view source) (semi-protected)
Template:Infobox firearm cartridge/ballistics footer (view source) (semi-protected)
Template:Infobox firearm cartridge/ballistics header (view source) (semi-protected)
Template:Infobox firearm cartridge/convert (view source) (semi-protected)
Template:Main other (view source) (protected)
Template:More citations needed (view source) (template editor protected)
Template:Pagetype (view source) (protected)
Template:Plainlist/styles.css (view source) (protected)
Template:Refimprove (view source) (template editor protected)
Template:Reflist (view source) (protected)
Template:Reflist/styles.css (view source) (protected)
Template:SDcat (view source) (protected)
Template:Short description (view source) (protected)
Template:Short description/lowercasecheck (view source) (protected)
Template:Side box (view source) (template editor protected)
Template:Sister project (view source) (template editor protected)
Template:Template other (view source) (protected)
Template:WPMILHIST Infobox style (view source) (template editor protected)
Template:Webarchive (view source) (template editor protected)
Template:Yesno (view source) (protected)
Template:Yesno-no (view source) (template editor protected)
Template:Yesno-yes (view source) (template editor protected)
Module:Arguments (view source) (protected)
Module:Catalog lookup link (view source) (template editor protected)
Module:Category handler (view source) (protected)
Module:Category handler/blacklist (view source) (protected)
Module:Category handler/config (view source) (protected)
Module:Category handler/data (view source) (protected)
Module:Category handler/shared (view source) (protected)
Module:Check for unknown parameters (view source) (protected)
Module:Check isxn (view source) (template editor protected)
Module:Citation/CS1 (view source) (protected)
Module:Citation/CS1/COinS (view source) (protected)
Module:Citation/CS1/Configuration (view source) (protected)
Module:Citation/CS1/Date validation (view source) (protected)
Module:Citation/CS1/Identifiers (view source) (protected)
Module:Citation/CS1/Utilities (view source) (protected)
Module:Citation/CS1/Whitelist (view source) (protected)
Module:Citation/CS1/styles.css (view source) (protected)
Module:Convert (view source) (template editor protected)
Module:Convert/data (view source) (template editor protected)
Module:Convert/text (view source) (template editor protected)
Module:Data (view source) (template editor protected)
Module:Delink (view source) (protected)
Module:Disambiguation/templates (view source) (protected)
Module:Find sources (view source) (template editor protected)
Module:Find sources/config (view source) (template editor protected)
Module:Find sources/links (view source) (template editor protected)
Module:Find sources/templates/Find sources mainspace (view source) (template editor protected)
Module:Infobox (view source) (template editor protected)
Module:Infobox/styles.css (view source) (template editor protected)
Module:InfoboxImage (view source) (template editor protected)
Module:Message box (view source) (protected)
Module:Message box/ambox.css (view source) (protected)
Module:Message box/configuration (view source) (protected)
Module:Namespace detect/config (view source) (protected)
Module:Namespace detect/data (view source) (protected)
Module:Pagetype (view source) (protected)
Module:Pagetype/config (view source) (protected)
Module:Pagetype/disambiguation (view source) (protected)
Module:Pagetype/rfd (view source) (template editor protected)
Module:Pagetype/setindex (view source) (protected)
Module:Pagetype/softredirect (view source) (protected)
Module:SDcat (view source) (protected)
Module:Separated entries (view source) (protected)
Module:Side box (view source) (template editor protected)
Module:Side box/styles.css (view source) (template editor protected)
Module:String (view source) (protected)
Module:TableTools (view source) (protected)
Module:Unsubst (view source) (protected)
Module:WPMILHIST Infobox style (view source) (template editor protected)
Module:Webarchive (view source) (template editor protected)
Module:Webarchive/data (view source) (template editor protected)
Module:WikidataIB (view source) (template editor protected)
Module:WikidataIB/nolinks (view source) (template editor protected)
Module:WikidataIB/titleformats (view source) (template editor protected)
Module:Wikitext Parsing (view source) (protected)
Module:Yesno (view source) (protected)

Return to .280 British.

Retrieved from "https://en.wikipedia.org/wiki/.280_British"