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Firearms Forum: Hunting Forum 09-22-2010, 06:16 AM
Replies: 3
Views: 595
Posted By ARP
We are building ARs in bigger calibers for hogs,...

We are building ARs in bigger calibers for hogs, the 6.8 is the most popular but also the 6mmBR, 30ARP which is a slightly shortened 308, a 358ARP is a 358 Win shortened to be Indiana legal, 7.62x39...
Firearms Forum: AR-15 Discussion 08-10-2010, 03:23 AM
Replies: 12
Views: 1,119
Posted By ARP
A good trigger will allow the shooter and the...

A good trigger will allow the shooter and the barrel to shoot to their full capability. If the barrel will only shoot a 4" group with a Geissele trigger then the next step is to try different ammo...
Firearms Forum: AR-15 Discussion 08-10-2010, 02:36 AM
Replies: 12
Views: 1,119
Posted By ARP
The bore should be .218", if you can slide a .219...

The bore should be .218", if you can slide a .219 inspection pin in the muzzle 3/4" and then it stops then the muzzle is large and will likely throw big groups.
If you already have a barrel that...
Firearms Forum: AR-15 Discussion 08-10-2010, 02:32 AM
Replies: 2
Views: 769
Posted By ARP
Most AR15 piston rifles on the market are retro...

Most AR15 piston rifles on the market are retro fits. They use the AR180 piston system that was developed in the 60s and retro fit it to the same round AR15 carrier, some with intragal keys some...
Firearms Forum: AR-15 Discussion 08-10-2010, 02:12 AM
Replies: 17
Views: 1,511
Posted By ARP
7mm-08 in a ITS-12 140gr Barnes TSX-44gr RE17...

7mm-08 in a ITS-12
140gr Barnes TSX-44gr RE17 Lapua brass.

http://68forums.com/forums/attachment.php?attachmentid=1445&stc=1&thumb=1&d=1280534907
Firearms Forum: AR-15 Discussion 08-10-2010, 02:01 AM
Replies: 6
Views: 3,210
Posted By ARP
Pretty sure SSK is the only company making the...

Pretty sure SSK is the only company making the 6.5 MPC and don't know of anyone making ammo.

6.5 Grendel using Bill Alexanders max loads in a 16" barrel- zeroed at 200yds drops at 300yds.
due to...
Firearms Forum: AR-15 Discussion 08-10-2010, 01:54 AM
Replies: 12
Views: 1,119
Posted By ARP
Something to watch for in 5.56 barrels, I have...

Something to watch for in 5.56 barrels, I have seen this in many brands, even the 1:8 twist stainless.
Many inexpensive brands button rifle the barrel and thread the muzzle without stress relieving,...
Firearms Forum: AR-15 Discussion 04-05-2010, 07:45 AM
Replies: 24
Views: 1,604
Posted By ARP
Agree with the guy above, you don't need all of...

Agree with the guy above, you don't need all of the stuff on the "chart" unless possibly you are LE or shoot carbine courses or train with thousands of rounds a month. Look around for the best...
Firearms Forum: Ammunition & Reloading 04-05-2010, 07:22 AM
Replies: 4
Views: 3,179
Posted By ARP
Accuracy and it has a different cone angle that...

Accuracy and it has a different cone angle that does not shave copper from the bullet as it enters the chamber, 1 number was transposed on the SPCII reamer drawing and that resulted in a 80 degree...
Firearms Forum: AR-15 Discussion 11-11-2009, 07:48 AM
Replies: 10
Views: 1,440
Posted By ARP
a couple of things come to mind, it could be...

a couple of things come to mind, it could be overgassed so the carrier travels too fast. It could be a rough chamber with the case sticking.
M193 loads are hot, overpressure in some chambers and...
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