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View Full Version : What calibers are available for the AR platform?


sierratangofoxtrotunion
11-19-2006, 11:27 PM
Everybody knows of the .223 / 5.56, and 6.8. There's the AR-10s in .308. There's the .22LR conversions, and I think I heard of a .45 setup? A friend told me recently about .50 beowulf that can go through a .223 / 5.56 lower, with the correct upper installed. What other calibers are available for the ar-15-style and ar-10-style lowers?

blkA4alb
11-19-2006, 11:32 PM
.223, 6.8, 6.5 Grendel, .50 Beowolf, .458 SOCOM, .510 DTC, .22LR, umm...

762cavalier
11-19-2006, 11:36 PM
Well the other ones that I know of are:

.22 rimfire
9mm
.45acp
6.5 grendel
204 ruger
.17 remington
7.62x39

and I know there are others just can't think of them right now:D

cornholio1
11-19-2006, 11:37 PM
Try searching for it. (no sarcasm intended). Theres a long thread about it.

PanzerAce
11-19-2006, 11:44 PM
stuff I know about:

.22LR
.22WMR
.17HM2
.17HMR
9mm
.45ACP
.45GAP
6.5 Grendel
6.8 SPC
204 ruger
7.62x39
.50 Beowulf
.500 whisper (I think thats it's name)
.499 something
.458 Socom
.45 bushmaster
.17 Remington
.222 remington
.223 remington
6x45
6mm PPC
25 WSSM
243 Leviathan

Im sure there are others.

five.five-six
11-20-2006, 12:12 AM
where do you get a 17hmr setup?

C.G.
11-20-2006, 12:16 AM
AR-15
.17 Remington
.22 Remington
.243 Levithian
.25 WSSM
9mm Parabellum
.40SW
.45ACP
.10
.204 Ruger
.6 x 45
6.5 Grendel
.6 PPC
6.5 MPC
6.8 SPC
.338 Spectre
.45 (? Bushmaster, no data yet)
.440 Corbon
.458 Socom
.499 LW
.50 AE (no longer produced, as far as I know)
.50 Beowulf

AR-10
.243 Win
.260 Rem
7mm-08
.270 WSM
284Win,
35Rem
.257Roberts
7mmWSM
.300WSM
.325WSM
.338WSM
.300 Savage
.300 Remington Short Magnum
.338 Federal
.358 Win
.450 Marlin
.470 Rhino
.500 Phantom

There may be others I forgot.

m1371
11-20-2006, 12:21 AM
stuff I know about:

.22LR
.22WMR
.17HM2
.17HMR
9mm
.45ACP
.45GAP
6.5 Grendel
6.8 SPC
204 ruger
7.62x39
.50 Beowulf
.500 whisper (I think thats it's name)
.499 something
.458 Socom
.45 bushmaster
.17 Remington
.222 remington
.223 remington
6x45
6mm PPC
25 WSSM
243 Leviathan

Im sure there are others.

AR-15
.50AE
.40S&W
10mm
10mm Magnum
.40 Extreme (still supposedly in development by Tromix)
.357Sig (small number of custom uppers, not a production item)
.17 Mach IV
.20 Tactical
.440 CorBon Mag
.475 Tremor
.44 RemMag
.44 AutoMag
.21 Genghis
.300 Whisper (also known as the .300-221 or .300 Fireball)
.30 HRT (Herrett Rimless Tactical)
.357 Auto
.338 CQB
.338 Spectre
.500 Phantom

AR-10
.22-250
338-7mm Benchrest
.338 Federal


ETA @ C.G. : The .338 Spectre is built for the AR15 platform, the .338 Federal is the AR10 offering.

NeoWeird
11-20-2006, 12:23 AM
Well here is what AR15Barrels chambers there barrels in, and they are only one company. They are also California based, so be sure to support them for your custom AR barrel needs.

http://www.ar15barrels.com/calibers.shtml

five.five-six
11-20-2006, 12:50 AM
Well here is what AR15Barrels chambers there barrels in, and they are only one company. They are also California based, so be sure to support them for your custom AR barrel needs.

http://www.ar15barrels.com/calibers.shtml

seems to me that i talked to randal about .17 hmr and the trouble is geting a mag. i wonder if you have to use a 22 lr conversion. any way it would be nice to drop the mag, be evil and not .22lr

Matt-man
11-20-2006, 9:35 AM
.300 Remington Ultra Magnum


300 RUM is longer than a 30-06. Maybe 300 Rem Short Action Ultra Mag?

C.G.
11-20-2006, 11:05 AM
300 RUM is longer than a 30-06. Maybe 300 Rem Short Action Ultra Mag?

Thank you for the correction, don't know what I was thinking.

five.five-six
11-20-2006, 11:15 AM
Thank you for the correction, don't know what I was thinking.


sure but only in an ar-10

The Professional
11-20-2006, 11:26 AM
.223, 6.8, 6.5 Grendel, .50 Beowolf, .458 SOCOM, .510 DTC, .22LR, umm...


I like the .458 SOCOM...planning to get one.

Cypriss32
11-20-2006, 5:30 PM
6.5 grendell for long range junkies and hand loaders.
6.8spc cool idea for an SPR style AR-15
223 same old bla bla
6.5 WSSM once again hand loaders and long range junkies
223 wssm shoots 77gr bullets likes 3300 fps could make a cool rifle
243 wssm
allmost all pistol calibers.