Why a bolt face diameter database? With new calibers and cartridges popping up almost weekly, as so many gunsmiths and precision rifle builders want to improve on designs, re-barreling and chamber change of rifles is becoming much more common. The main question for shooters that want to re-barrel and re chamber their rifles to a new caliber or cartridge, is firstly if the new cartridge base will fit in and extract with the current bolt face, secondly if the new cartridge will fit in the action and cycle out of the magazine, and lastly what other if any custom work needs to be done either to the bolt or the action.
We have found quite a few smaller fragmented resources showing pieces of the information needed in various forums and chat groups on the internet and social networks, but decided to compile a larger database or type of bolt face diameter database in one spot, for all to see and learn from, and will periodically update the database as we learn of new calibers and cartridges becoming available and popular. One rifle caliber chart resource showing all the bolt face diameter sizes for the different calibers and cartridges.

If you disagree with anything listed in this rifle caliber chart database, or want to add anything new to it, please do go ahead and contact us with your recommendations for changes or additions as we are also still in the ongoing learning process and appreciate any feedback and information we can find.
The first database or bolt face diameter chart, is of the Various cartridges that can work with the same bolt faces and action lengths. There are basically four main bolt face diameters and two action lengths that cover most cartridges, with just a few falling outside of those. Generally short-action would be suitable for cartridges with a COAL of 2.3 – 2.8 inches, long-action would be suitable for cartridges with a COAL of 2.8 – 3.34 inches and magnum-action would be suitable for cartridges with a COAL of 3.34 inches and longer.
Bolt Face Database
Bolt Face Diameter (inches) | Caliber | Action Length |
---|---|---|
.318 +/- | 5.7×28 | Short Action |
.384 +/- | 17 Rem | Short Action |
.384 +/- | 204 Ruger | Short Action |
.384 +/- | 222 Rem | Short Action |
.384 +/- | 223 Rem | Short Action |
.384 +/- | 350 Legend | Short Action |
.384 +/- | 20 Nosler | Short Action |
.384 +/- | 22 Nosler | Short Action |
.384 +/- | 24 Nosler | Short Action |
.384 +/- | 300 AAC Blackout | Short Action |
.427 +/- | 224 Valkyrie | Short Action |
.427 +/- | 6.8mm Remington SPC | Short Action |
.445 +/- | 6mm PPC | Short Action |
.445 +/- | 6mm ARC | Short Action |
.445 +/- | 6.5 Grendel | Short Action |
.445 +/- | 7.62x39mm | Short Action |
.470 +/- | 220 Swift | Short Action |
.470 +/- | 225 Win | Short Action |
.470 +/- | 22-250 Rem | Short Action |
.470 +/- | 22 Creedmoor | Short Action |
.470 +/- | 22XC | Short Action |
.470 +/- | 22 GT | Short Action |
.470 +/- | 22×47 Lapua | Short Action |
.470 +/- | 243 Win | Short Action |
.470 +/- | 250 Savage | Short Action |
.470 +/- | 25 Creedmoor | Short Action |
.470 +/- | 260 Rem | Short Action |
.470 +/- | 6mm Dasher | Short Action |
.470 +/- | 6mm Norma BR | Short Action |
.470 +/- | 6mm BRX | Short Action |
.470 +/- | 6mm BRA | Short Action |
.470 +/- | 6mm Creedmoor | Short Action |
.470 +/- | 6mm XC | Short Action |
.470 +/- | 6mm GT | Short Action |
.470 +/- | 6×47 Lapua | Short Action |
.470 +/- | 6mm Super LR | Short Action |
.470 +/- | 6mm-284 | Short Action |
.470 +/- | 6.5/284 Norma | Short Action |
.470 +/- | 6.5mm Creedmoor | Short Action |
.470 +/- | 6.5×47 Lapua | Short Action |
.470 +/- | 7mm-08 Rem | Short Action |
.470 +/- | 7mm SAW | Short Action |
.470 +/- | 270-08 | Short Action |
.470 +/- | 270 Redding | Short Action |
.470 +/- | 270 Sig Fury | Short Action |
.470 +/- | 284 win | Short Action |
.470 +/- | 300 Savage | Short Action |
.470 +/- | 308 Win | Short Action |
.470 +/- | 338 Federal | Short Action |
.470 +/- | 8.6 Blackout | Short Action |
.470 +/- | 35 Rem | Short Action |
.470 +/- | 358 Winchester | Short Action |
.540+/- | 223 WSSM | Short Action |
.540+/- | 243 WSSM | Short Action |
.540+/- | 25 WSSM | Short Action |
.540+/- | 270 WSM | Short Action |
.540+/- | 6.5 x 300 Weatherby | Short Action |
.540+/- | 6.5 PRC | Short Action |
.540+/- | 6.5mm GAP 4S (SAUM) | Short Action*(See note below) |
.540+/- | 7mm Rem saum | Short Action |
.540+/- | 7mm WSM | Short Action |
.540+/- | 300 Rem saum | Short Action |
.540+/- | 300 WSM | Short Action |
.540+/- | 325 WSM | Short Action |
.540+/- | 350 Rem Mag | Short Action |
.470 +/- | 6mm Rem | Long Action |
.470 +/- | 240 Weatherby Mag | Long Action |
.470 +/- | 257 Roberts | Long Action |
.470 +/- | 25-06 Rem | Long Action |
.470 +/- | 6.5×55 Swedish | Long Action |
.470 +/- | 6.5-06 A-Square | Long Action |
.470 +/- | 270 Win | Long Action |
.470 +/- | 7×57 Mauser | Long Action |
.470 +/- | 7×64 Brenneke | Long Action |
.470 +/- | 280 Rem | Long Action |
.470 +/- | 30-06 Springfield | Long Action |
.470 +/- | 8mm Mauser | Long Action |
.470 +/- | 338/06 A Square | Long Action |
.470 +/- | 35 Whelen | Long Action |
.540 +/- | 257 Weatherby | Long Action |
.540 +/- | 26 Nosler | Long Action |
.540 +/- | 264 Win Mag | Long Action |
.540 +/- | 270 Weatherby Mag | Long Action |
.540 +/- | 7mm Rem Mag | Long Action |
.540 +/- | 7mm Weatherby Mag | Long Action |
.540 +/- | 7 STW | Long Action |
.540 +/- | 7mm PRC | Long Action |
.540 +/- | 28 Nosler | Long Action |
.540 +/- | 28 Sherman Magnum | Long Action |
.540 +/- | 7LRM (Long Range Magnum) | Long Action |
.540 +/- | 7mm Rem Ultra Mag | Long Action |
.540 +/- | 300 H & H | Long Action |
.540 +/- | 300 Win Mag | Long Action |
.540 +/- | 300 PRC | Long Action |
.540 +/- | 30 Sherman Magnum | Long Action |
.540 +/- | 300 Weatherby Mag | Long Action |
.540 +/- | 300 RUM | Long Action |
.540 +/- | 303 Brit | Long Action |
.540 +/- | 8mm Rem Mag | Long Action |
.540 +/- | 338 Win Mag | Long Action |
.540 +/- | 338 EDGE | Long Action |
.540 +/- | 340 Weatherby Mag | Long Action |
.540 +/- | 338 RUM | Long Action |
.540 +/- | 375 H & H | Long Action |
.540 +/- | 375 Weatherby | Long Action |
.540 +/- | 375 RUM | Long Action |
.540 +/- | 416 Rem Mag | Long Action |
.540 +/- | 458 Win Mag | Long Action |
.540 +/- | 458 Lott | Long Action |
.585 +/- | 300 Norma Mag | Long Action |
.585 +/- | 338 Norma Mag | Long Action |
.585 +/- | 30/378 Weatherby | Long Action |
.585 +/- | 338 Lapua | Long Action |
.585 +/- | 33XC | Long Action |
.585 +/- | 338/378 Weatherby | Long Action |
.585 +/- | 378 Weatherby mag | Long Action |
.585 +/- | 37XC | Long Action |
.585 +/- | 416 Rigby | Long Action |
.585 +/- | 416 Weatherby Mag | Long Action |
.585 +/- | 460 Weatherby Mag | Long Action |
.585 +/- | 470 Nitro Express | Long Action |
.640 | 375 CheyTac | Magnum Action |
.640 | 408 CheyTac | Magnum Action |
.640 | 505 Gibbs | Magnum Action |
Next up is a database showing the more precise diameters of the case heads of the difference cartridges, and the COAL (cartridge overall length) most common on those cartridges, so basically the most comprehensive chart of bullet sizes available anywhere to the public.
Case Head & COAL Database
Caliber | Case Head | COAL |
---|---|---|
17 Rem | .378″ | 2.17″ |
17 Mach4 | .378″ | 1.77″ |
204 Ruger | .378″ | 2.26″ |
22 RemJet | .439″ | 1.66″ |
22 Hornet | .35″ | 1.8″ |
22 KHornet | .35″ | 1.75″ |
22 Spitfire | .356″ | 1.65″ |
218 Bee | .408″ | 1.63″ |
218 Mashburn | .408″ | 1.63″ |
221 Fireball | .378″ | 1.84″ |
222 Rem | .378″ | 2.2″ |
222 RemMag | .378″ | 2.33″ |
223 Rem | .378″ | 2.3″ |
223 RemAI | .378″ | 2.3″ |
350 Legend | .378″ | 2.26″ |
220 Russian | .441″ | 2.07″ |
22 PPC | .44″ | 2.07″ |
.224 Valkyrie | .422″ | 2.26″ |
6.8mm Remington SPC | .422″ | 2.26″ |
219 Zipper | .506″ | 2.4″ |
22 BR | .473″ | 2″ |
225 Win | 473″ | 2.43″ |
224 WeatherbyMag | .43″ | 2.38″ |
22-250 Rem | .472″ | 2.35″ |
22 XC | .471″ | 2.75″ |
22 Creedmoor | .473″ | 2.825″ |
22 GT | .473″ | 2.6″ |
220 Swift | .473″ | 2.7″ |
22×47 Lapua | .473″ | 2.795″ |
220 Redline | .534″ | 2.8″ |
224 Clark | .473″ | 3.08″ |
22 CheetahMkI | .473″ | 2.5″ |
223 WSSM | .535″ | 2.36″ |
22 SavHiPower | .492″ | 2.51″ |
6mm-223 Rem | .378″ | 2.26″ |
6mm PPC | .441″ | 2.19″ |
6mm ARC | .441″ | 2.26″ |
6mm BR | .473″ | 2.2″ |
6mm Dasher | .473″ | 2.2″ |
6mm XC | .471″ | 2.75″ |
6mm GT | .473″ | 2.6″ |
6×47 Lapua | .473″ | 2.795″ |
6mm Creedmoor | .473″ | 2.825″ |
6mm Super LR | .473″ | 2.8″ |
6mm TCU | .378″ | 2.5″ |
6mm-284 Win | .473″ (rebated) | 2.83″ |
243 Win | .473″ | 2.65″ |
6mm Rem | .473″ | 2.83″ |
240 WbyMag | .473″ | 3.08″ |
6.17 Spitfire | .53″ | 2.8″ |
243 WSSM | .535″ | 2.36″ |
240 Apex (BeltedNE) | .475″ | 3.21″ |
256 WinMag | .44″ | 1.78″ |
25-21 Stevens | .376″ | 2.3″ |
25-25 Stevens | .376″ | 2.63″ |
25 Rem | .421″ | 2.53″ |
250 Sav | .472″ | 2.4″ |
257 Roberts | .467″ | 2.99″ |
25 Creedmoor | .473″ | 2.825″ |
25-’06 Rem | .473″ | 3.25″ |
25-284 Win | .473″ (rebated) | 2.93″ |
257 WbyMag | .53″ | 3.3″ |
6.3 Scramjet | .53″ | 3.58″ |
6.5 Grendel | .441″ | 2.26″ |
6.5 Japanese | .466″ | 2.85″ |
6.5 Carcano | .449″ | 2.94″ |
6.5×54 Mann-Schoen | .453″ | 2.99″ |
6.5mm-257 Bob | .467″ | 2.75″ |
6.5×47 Lapua | .473″ | 2.795″ |
260 Rem | .473″ | 2.84″ |
6.5mm Creedmoor | .473″ | 2.825″ |
6.5mm GAP 4S (SAUM) | .534″ | 2.85″ |
6.5 PRC | .532″ | 2.955″ |
6.5×55 Swede | .476″ | 3.03″ |
6.5mm-284 Win | .473″ (rebated) | 2.95″ |
6.71 Phantom | .53″ | 2.8″ |
6.5mm-’06 A-Square | .473″ | 3.2″ |
6.5 RemMag | .532″ | 3.05″ |
264 WinMag | .532″ | 3.35″ |
26 Nosler | .534″ | 3.34″ |
270 Win | .473″ | 3.35″ |
270 WSM | .535″ | 2.86″ |
270 WbyMag | .53″ | 3.28″ |
270-08 | .473″ | 2.8″ |
270 Redding | .473″ | 2.8″ |
270 Sig Fury | .472″ | 2.8″ |
7×33 Sako | .394″ | 1.73″ |
7mm TCU | .378″ | 2.68″ |
7mm BR | .473″ | 2.33″ |
7-30 Waters | .506″ | 2.55″ |
7mm-08 Rem | .473″ | 2.8″ |
7mm SAW | .473″ | 2.96″ |
.284 Shehane | .473″ | 2.96″ |
7mm SAW II | .473″ | 3.090″ |
7×57 | .473″ | 3.02″ |
284 Win | .473″(rebated) | 2.95″ |
7×64 Brenneke | .473″ | 3.3″ |
280 Rem | .473″ | 3.33″ |
7.21 Tomahawk | .577″ | 2.8″ |
7mm SAUM | .534″ | 2.84″ |
7mm WSM | .535″ | 2.86″ |
7mm RemMag | .532″ | 3.29″ |
7mm WbyMag | .53″ | 3.26″ |
7mm Practical | .532″ | 3.622″ |
7mm Mashburn | .532″ | 3.65″ |
7mm PRC | .532″ | 3.34″ |
28 Nosler | .534″ | 3.34″ |
7LRM (Long Range Magnum) | .532″ | 3.43″ |
28 Sherman Magnum | .532″ | 3.7″ |
7mm STW | .532″ | 3.6″ |
7mm-300 WbyMag | .532″ | 3.72″ |
7mm RUM | .534″ | 3.6″ |
7.21 Firebird | .577″ | 3.6″ |
7mm Dakota | .545″ | 3.33″ |
28-30 Stevens | .412″ | 2.82″ |
7mm H&H | .532″ | 3.22″ |
7mm Rigby | .528″ | 3.25″ |
300 AAC Blackout | .378″ | 2.26″ |
300 Sherwood | .37″ | 2.2″ |
7.35 Carcano | .449″ | 2.9″ |
300 Whisper | .378″ | 2.26″ |
303 Sav | .503″ | 2.52″ |
300 Sav | .473″ | 2.6″ |
308 Win | .473″ | 2.8″ |
7.5×54 MAS | .482″ | 2.99″ |
7.5 Schmidt-Rubin | .495″ | 3.03″ |
30-’06 Springfield | .473″ | 3.34″ |
30 Gibbs | .471″ | 3.34″ |
300 SAUM | .534″ | 2.83″ |
7.82 Patriot | .577″ | 2.8″ |
300 WSM | .535″ | 2.86″ |
30-338 WinMag | .532″ | 3.34″ |
308 NormaMag | .532″ | 3.28″ |
300 H&H | .532″ | 3.65″ |
300 WinMag | .532″ | 3.34″ |
300 PRC | .532″ | 3.7″ |
30 Sherman Magnum | .532″ | 3.775″ |
300 WbyMag | .53″ | 3.56″ |
300 RUM | .534″ | 3.6″ |
300 Dakota | .545″ | 3.43″ |
7.82 Warbird | .577″ | 3.6″ |
30-378 WbyMag | .603″ | 3.67″ |
7.62×45 Czech | .441″ | 2.45″ |
7.62x39mm (AK47 Round) | .447″ | 2.19″ |
303 Brit | .525″ | 3.08″ |
7.7mm Japanese | .471″ | 3.17″ |
7.65 ArgentineMauser | .473″ | 2.95″ |
310 Cadet | .405″ | 1.59″ |
8×57 Mauser | .473″ | 2.99″ |
8mm-’06 Spr | .473″ | 3.18″ |
8×60 S | .473″ | 3.1″ |
8×64 Brenneke | .52″ | 3.65″ |
8×64 Sauer | .499″ | 3.2″ |
8×68 SMag | .524″ | 3.4″ |
8mm RemMag | .532″ | 3.6″ |
318 WestleyRichards | .465″ | 3.35″ |
33 Jeffrey | .534″ | 3.45″ |
338 Federal | .473″ | 2.75″ |
8.6 BLK / 8.6 Creedmoor | .473″ | 2.825″ |
338-’06 A-Square | .473″ | 3.34″ |
8.59 Galaxy | .577″ | 2.8″ |
338 Win Mag | .532″ | 3.34″ |
340 Weatherby Magnum | .53″ | 3.68″ |
338 RUM | .534″ | 3.6″ |
338 Norma | .588″ | 3.60″ |
338 EDGE | .534″ | 3.80″ |
330 Dakota | .545″ | 3.33″ |
8.59 Titan | .577″ | 3.6″ |
338 Lapua Mag | .588″ | 3.68″ |
33XC | .580″ | 4.6″ |
338-378 WbyMag | .603″ | 3.76″ |
36 NitroExpress | .48″ | 2.98″ |
400-350 NE-Rigby | .52″ | 3.55″ |
350 RigbyMag | .525″ | 3.57″ |
35 Rem | .46″ | 2.51″ |
358 Win | .473″ | 2.78″ |
35 Whelen | .473″ | 3.26″ |
350 RemMag | .532″ | 2.93″ |
358 NormaMag | .532″ | 3.28″ |
37XC | .580″ | 4.8″ |
9.3×57 Mauser | .469″ | 3.23″ |
9.3×62 Mauser | .473″ | 3.29″ |
400-375 BeltedNE | .466″ | 3″ |
375 H&H | .532″ | 3.6″ |
375 Ruger | .532″ | 3.34″ |
376 Steyr | .504″ | 3.11″ |
375 WbyMag | .53″ | 3.69″ |
375 Rum | .535″ | 3.6″ |
375 Dakota | .545″ | 3.33″ |
378 WbyMag | .603″ | 3.65″ |
375 RimlessNE2-1/4 | .473″ | 2.94″ |
10.15×61 Jarmann | .615″ | 3.06″ |
404 Basic | .542″ | 3.6″ |
416 Taylor | .532″ | 3.38″ |
416 RemMag | .532″ | 3.6″ |
10.57Meteor | .577″ | 3.62″ |
416 Dakota | .545″ | 3.65″ |
500-416 RimlessNE | .59″ | 3.91″ |
416 WbyMag | .603″ | 3.75″ |
416 Rigby | .59″ | 3.75″ |
404 Jeffreys | .537″ | 3.53″ |
10.75×68 Mauser | .492″ | 3.16″ |
425 WestleyRichards | .467″ | 3.3″ |
11.2×72 Schuler | .536″ | 3.85″ |
11.75×36 Montenegrin | .555″ | 1.73″ |
43 Mauser | .586″ | 3″ |
458 WinMag | .532″ | 3.3″ |
458 Lott | .532″ | 3.6″ |
450 Dakota | .582″ | 3.74″ |
460 WbyMag | .603″ | 3.71″ |
461 Gibbs | .626″ | 3.85″ |
470 Capstick | .532″ | 3.6″ |
50 Beowulf | .445″ | 2.24″ |
505 Gibbs | .64″ | 3.75″ |
500 Jeffrey | .615″ | 3.5″ |
50 BMG | .804″ | 5.45″ |
585 Nyati | .66″ | 3.53″ |
600-577 Rewa | .66″ | 3.7″ |
FAQ for Bolt Face Diameters
What Calibers Use a .308 Bolt Face?
As the .308 Winchester cartridge uses the .470 +/- bolt face, all of the other calibers and cartridges listed on the bolt face chart above, with the .470 +/- bolt face diameter, use the same bolt face as the .308 Winchester.
What Bolt Face is a 6.5 Creedmoor?
As can be seen on the bolt face database chart at the top op this page. The 6.5mm Creedmoor uses the same .470 +/- bolt face as the .308 Winchester cartridge.
What is the Bolt Face?
The bolt face is the surface of the rifle bolt, that makes contact with the cartridge case head. It also usually hold the cartridge in position inside a rifle action, and usually has a ejector pin that ejects the empty fired cartridge case, after the shot has been fired. In center fire rifles, the firing pin comes through a hole in the bolt face, to strike the primer in the cartridge case which sets of the propellant to fire the bullet.
Will a 308 Action Work for 6.5 Creedmoor?
As both the .308 Winchester and the 6.5mm Creedmoor cartridges work in short actions, and use the same .470 +/- bolt face, a .308 Winchester action or rifle will work with a barrel chambered for 6.5mm Creedmoor cartridges.
What Bolt Face is .22-250?
.22-250 Remington cartridge uses a .470 +/- bolt face.
What Bolt Face is 6.5 PRC?
The 6.5 PRC cartridge has a .532″ case head and uses the .540 +/- standard magnum bolt face.
What calibers can a 30-06 be converted to?
As the .30-06 Springfield has a .473″ case head and uses the .470 +/- bolt face, any cartridges list on the above two bolt face diameter and action length database charts above, that also use the .470 +/- bolt face, and have a COAL of 3.34″ or shorter, will work with .30-06 actions. However, it is a waste of space to use short action cartridges in long actions.
What calibers use a 308 case?
The .308 Winchester is the parent case to familiar cartridges like the .243 Winchester, .260 Remington, 7mm-08 Remington, .338 Federal, ..358 Winchester and all their associate wildcat cartridges and calibers developed from them.
*6.5 GAP 4S or 6.5 SAUM Short Action?
Generally the 6.5mm GAP 4S cartridges will fit in a short action, but with the newer and longer bullets like the Berger 156gr EOL Hunter and Berger 140gr EH or similar which offer much greater BC and weight, if they are loaded long enough to properly use the case capacity and correct placement of boat tail just below the neck of the case, then they will be too long to fit in a short action magazine. They will then either have to be loaded into the action one by one from the top after each shot, or it would be better to use a long or medium action to build this cartridge rifle to use to it’s full potential.
*New Long, High BC Bullets
Something to remember when you are building a new short action to take the newer, longer high BC bullets, like for cartridges like the 6.5 PRC, 6.5 WSM, 6.5 SAUM, 7mm WSM, 7mm SAUM and other similar cartridges that usually are built in short magnum actions. When you have to seat those longer bullets in deeper into the case to fit in the magazine length, or in a normal short throat chamber, the bullet will take up more of the volume inside the case, which will mean less volume for the propellant or powder.
Keep in mind, as solid copper bullet tend to be longer than lead core bullets of the same weight, because the lead is more dense than the copper, you will be more suited to conventional lead core bullets.
If you do in fact want to build the rifle for long range and specifically want to shoot those long high BC solid copper or lead core bullets, you should rather consider a long action rifle or a medium action so you can have a longer chamber and longer magazine and often also have the gunsmith use a custom reamer with long throat, this way you will not have a problem running and cycling those long bullets at the required COAL for their full potential.
Please do contact us if you have any new calibers or cartridges you think we should add to the bolt face diameter chart above or the bullet size chart at the bottom, we love learning about and teaching others about bolt face sizes and which are compatible. There are many changes that are quite easily compatible, like changing from a 308 Winchester action and chamber, over to a 6.5mm Creedmoor, or 6mm Creedmoor or even .22 Creedmoor. You can even change a .22-250 over to a .22-250 Ackley Improved, or a 22XC or a 22GT and even the same .22 Creedmoor mentioned above. When studying the bolt face charts above, you will see the the possibilities are endless.
It makes sense when you are quite heavily into precision rifle shooting, and going to change your barrel to a custom or competition barrel in any case, to just buy the rifle or action you want in any compatible bolt face action, and then fit the new barrel and cartridge chamber onto it, instead of having to wait for the action or rifle manufacturers to first have to produce the caliber rifle you want.
Some truly fantastic work on behalf of the owner of this internet site, dead outstanding subject material.
> However, it is a waste of space to use short action cartridges in long actions.
Not necessarily. I think converting a long action to accept a short action cartridge makes sense when a fast twist barrel and appropriate chamber throating is also employed to support very long high B.C. bullets–particularly when converting a long action to accept a short or compact magnum cartridge. The additional action length is essential to support the long cartridge overall lengths required.
Based on your fine piece of work would it be true that a 300 PRC action could easily be rebarreled to a 300 or 7mm RUM cartridge?
In general, yes. The RUM and 26/28/30/etc nosler cases are fatter than the PRC cases and thus *may* not feed quite as well in certain action set ups.
Great work, thanks for sharing this info.
How about:
224 Valkyrie Case Head= . 422, COAL = 2.260
6.8 SPC Case Head= . 422, COAL = 2.260
Both are Short Action. SAMMI specs show bolt face at .4255, but my bolts measure .430
Thank you for the submissions, I have added them.
Thanks for the information
I realize there is more to a cartridge than diameter and length now. I was just looking at my 243 cartridge looks just the same as my 7.65 mauser
I wont be trying to use any thing but the correct ammo.
I believe the case head for 6.5mm-284 is ..473″ (rebated) like it is for the 6mm-284
Thank you for spotting the typing error. We have fixed it on the database now.