Ar-15 ?

[BarW]

Any real world advantage to having a 20" barrel over a 18" for a gun that will be used to shoot hogs in thick woods? 150 yards max shooting, 6.5 Grendel if that matters. Accuracy difference maybe?

[Playa]

Velocity

[Artos]

Heck, I would go 16" for that application...sounds crazy for only a couple inches, but the AR is a much more handy hunting rig with the minimum length bbl. Velocity really isn't that important unless you need to reach out 2x the distance you are needing.

[Lsube0555]

6.5 Grendel is really designed to run thru 20”, enegery and speed are the main factors, if your considering 18 might as well do 20 now if the question is 14/16 vs 20 then it would be a question. If your strictly carrying it a ton shooting off hand in the brush and stuff less than 150 I’d go 16 or shorter

[lbbf]

I know a few people with 16" Grendles and they shoot great. If you are wanting to stretch the shots out a little farther I would go 20". Short, 150y or less, 16" barrel is fine.
I have a 24" heavy barrel on mine and it weighs a TON!

[Buff]

I know a few people with 16" Grendles and they shoot great. If you are wanting to stretch the shots out a little farther I would go 20". Short, 150y or less, 16" barrel is fine.
I have a 24" heavy barrel on mine and it weighs a TON!

I can say that 123 grain bullet with 28 grains of 8208 out of a 24” barrel should be around 2500 fps according to the book.

I am running a 16” barrel and getting 2320 fps.

I don’t believe a pig at 100 yards will be able to tell the difference

[cj_sandman]

No. Go with a short barrel. . . . And then add a suppressor.

[lbbf]

I can say that 123 grain bullet with 28 grains of 8208 out of a 24” barrel should be around 2500 fps according to the book.

I am running a 16” barrel and getting 2320 fps.

I don’t believe a pig at 100 yards will be able to tell the difference

That's what I was trying to say. Unless you are planning on 5 football fields or more a 16" barrel should work fine and be a whole lot easier to haul around in the brush.

[BarW]

Thanks for the info guys.

[texag93]

I’m wanting a 12” Grendel.

[Cottonfish]

Several posters on the Grendel forum are seeing good performance from barrels as short as 12". I just finished my first Grendel, with a 16" Faxon barrel, mid-length gas. Seeing chrony results of around 2380 fps with factory 123gr Hornady SST. Looks like energy drops below 1000 ft-lbs around 300 yards or so. Plenty good for the hunting I plan to do with it, with a suppressor.

Stu