Best AR Calibers That Aren’t 5.56 NATO

12" Grendel pistol
90gr Federal TNT 2612 5 shot average
100 gr Wolf 2362 5 shot average

6 ARC 12" pistol
Hornady ELD 80gr 2362 5 shot average

6mm ARC 18"rifle Hornady 80gr ELD
2627 5 shot average
Hornady Black 105gr
5 shot avarage 2652

12 " 308 pistol
M80 147gr fmj 2328 5 shot avarage
M119 175gr HPBT
2304 5 shot average.

18" Grendel rifle
123gr Hornady eld 2635 5 shot average.

3 Likes


It was made in 1919 . Chambered in 30 rem.

6 Likes

had one of those in 35 rem. years ago.

3 Likes

A lot of 12" 308’s out there. Almost like a bunch of barrels got dumped on the community for cheap a few years back!

4 Likes

I do seem to recall something like that happening.

4 Likes

And for large things needing shot the 50 Beowulf or 450 Bushmaster do a fine job. Basically the same ballistics as a 45/70. Both are only about a 250yd gun but they hit hard.

4 Likes

Do you have the Beowulf or Bushmaster? I have yet to shoot either, or the 458 SOCOMM

3 Likes

I have a 450 Bushmaster and a 50 Beowulf. Had the Beowulf for about 15 years.

3 Likes

How is it for follow up shots? I had been thinking about one of those for hogs in Texas. Suppressed was on my mind too. There have been many times I have 6 to 20 hogs to shoot. The more I thin out the better.

5 Likes

They are about like shooting a 20ga semiauto shotgun. They are really a 200 yd gun. rainbow shaped trajectory. 6ARC or 6.5 grendel work well on hogs with little more recoil than 5.56.

4 Likes

I appreciate that. I went with the 6.8 SPC II for hogs and then the 6.5 (the one I wrote the article about) and have two 300 blackouts I want to test on hogs. The .4xx’s have just been a “I wonder” build. I don’t need my shoulders torn up any worse than they are (Dr’s want to do surgery on both and my bolt 308 kicks the snot out of me)

4 Likes

just put a new barrel in the grendel and go shoot some hogs.

3 Likes

I did a sight in on one in 458 socom . The owner said it was hitting all over the place . Once I got it on paper it did not shoot bad and did not really recoil that bad . But at $ 3 a round I’ll pass.

5 Likes

My 458 shoots nice, soft recoiling and accurate shooting 300 TTSX Barnes, Lil’gun, Starline brass. Gotta handload though.

6 Likes

Getting the bug for a 300BLK, BA has 10.5" barrels 1:7 twist pistol gas for 25% off, Free shipping, is 1:7 enough twist for 220gr bullet? Faxon is a little more $ 1:5 twist.

4 Likes

Think my BO is 1/8

2 Likes

1:8 handle 220gr pills?

2 Likes

I have shot a few 220’s. Never for groups. Just wanted to be sure the gun ran with them. I usually run 147’s. Its one of my truck guns. The 147’s run about 1.5 moa with a red dot on it.
one of these years ill get a can maybe.

4 Likes

If I ever have to kill a monster shark off the coast of Martha’s Vineyard, I’m bringing you with me.

6 Likes

That question of twist made me jump up and open the safe on mine. I can’t find it, the handguard must be covering it and I didn’t note it in my spreadsheet. I went to where I bought it and that company shows me having no order, though I have probably bought from them a hundred or more times.

2 Likes