.338 setup

[bobbyfairbanks]

I'm thinking I want to build up a 18" .338 federal. I haven't seen very many barrels out there and mostly DPMS. I won't do DPMS for this gun. Any one out there have a line on good barrels for .338 federal (AR10 platform)?

[XC700116]

JP offers them and GAP offers GAP10's in 338 federal so they might sell you a barrel. Both top of the line.

[bobbyfairbanks]

Never thought to look at JP. Thanks

[smchop]

GAP barrels are more than likely going to be Bartlein barrels, I know the one on my .308 is. Very accurate, quality shit, with the price tag to match!

[bobbyfairbanks]

Ok I'll call. I started thinking about .338 Federal a few weeks ago and now I can't get the cartridge off my mind. I'm pretty sure a new build is starting.

[Zombie Steve]

I have some 200 grainers for you when you get it all together.

[Hoser]

With those short little SR-25 mags you wont be getting much in the way of velocity. Might be a better caliber in a short action bolt gun.

[Lars]

With those short little SR-25 mags you wont be getting much in the way of velocity. Might be a better caliber in a short action bolt gun.

The .338 federal is based on the .308 win and has a C.O.A.L. Of 2.75in. compared to the .308 which is 2.800 so there will be no issue with the mag length.

[Zombie Steve]

Just load it to mag length and let the rifle tell you what it likes. Obviously, you aren't picking .338 Federal because it's a barn burner.

[Hoser]

The .338 federal is based on the .308 win and has a C.O.A.L. Of 2.75in. compared to the .308 which is 2.800 so there will be no issue with the mag length.

But with a longer bolt gun magazine you seat the bullets out to chase the throat as the barrel wears. With SR-25/Magpul LR mags you are stuck around 2.800 and with a bolt gun you can go a touch over 3.00

Might be a fun little caliber for shooting pigs with an AR-10.