Short .308

[windermike]

I just picked up a 700p .308 and am thinking about cutting it down to either 18 or 20 inches. I am waiting on a suppressor for my .300 win mag and thought why not get a .308 also. So here is my question. How much will cutting the barrel down effect accuracy and velocity with a .308?If any of you have any pics of short .308s post them.

Thanks
Mike

 

[roggom]

Re: Short .308

Accuracy, depends on who is doing the cutting and if you reload. Velocity, around 25fps per inch

Just a general reference.

http://www.chuckhawks.com/rifle_barrel.htm

I reload, but had good results in the 1:12 with FGMM in 20 and 26" bbls

http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=1427106&page=1

 

[AMTeam4]

Re: Short .308

Here are a ton of pics:
http://snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=2378062&gonew=1#UNREAD

 

[justinbaker]

Re: Short .308

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: windermike</div><div class="ubbcode-body">I just picked up a 700p .308 and am thinking about cutting it down to either 18 or 20 inches. I am waiting on a suppressor for my .300 win mag and thought why not get a .308 also. So here is my question. How much will cutting the barrel down effect accuracy and velocity with a .308?If any of you have any pics of short .308s post them.

Thanks
Mike </div></div>



accuracy wont be affected at all as long as the gunsmith does a good job.

as far as velocity, yes you will lose some

out of my factory remington im getting 2580 with 178's

 

[windermike]

Re: Short .308

Accuracy, depends on who is doing the cutting and if you reload. Velocity, around 25fps per inch
The Guys at Accurate Ordnance will do the cutting and threading.

I reload, but had good results in the 1:12 with FGMM in 20 and 26" bbl

I just bought a bunch of reloading stuff and am going very slow. I have yet to load a round. I hope to get some ammo loaded this weekend.

Thanks for the pic thread that is the one I was looking for.

Mike

 

[grass_hopper]

Re: Short .308

Im at 18" with my .308, dont have a chrono,but still good out to 875yds. (furthest I have been able to take it on a KD range)

 

[anschutz64ms]

Re: Short .308

Good post, I'm doing the exact same thing and was wondering the same question. keep us posted

 

[windermike]

Re: Short .308

I dropped my gun off Friday to have it cut down to 18 and threaded and profiled for a suppressor. I will post pics as soon as I get it back.

 

[pistolpacknpete]

Re: Short .308

TOdd on magpul dvd claims that 20" is the best. Because a shorter thicker barrel is stiffer and is affected less by harmonics. Sounds right in theory I just don't know. He's shooting 20" 338's past a mile and still sub Moa

 

[redroan45]

Re: Short .308

http://www.youtube.com/watch?v=15qj032UJ1I

This made up my mind for me...

 

[Drake Associates]

Re: Short .308

If it helps - were shooting a .308, 16" barrel to 900m+ on the STALKER GEN 2 sniper weapon system. We're using a 1 in 10 twist 4 groove heavy profile barrel. I do agree with the theory of minimizing barrel whip by using a shorter heavy bull profile barrel

Here is a link to the Snipers Blog page where the standard lighter profile barrel was used. Lighter profile barrel works nicely to 800m+ and there were some nice reviews on the advantages of this shorter barrel

Drake Associates SNIPER'S BLOG link

Case in point - shorter works, however the correct twist rate should be used.

 

[K_4c]

Re: Short .308

My budget build remmy cut to 16" will still throw a 168 smk with 44.2 of varget @ 2480 fps. I've had consistent hits out to 825 meters. Waiting on my TBAC 30-BA to see if I can touch 2500 fps.

Overall I'm very happy with its performance for a stock sps barreled action. I figured if I didn't like it I'd rebarrel (out $80-100 for the factory barrel) it and drive on but it works pretty damn good. Win win for me.

 

[coldboremiracle]

Re: Short .308

There are those of us who shoot 16 inch .308's, and do quite well out to 1k.