View Full Version : Best .308 to SBR?

January 13, 2016, 23:40
Not sure where to post this. Prob an old discussion.

A PTR91 pistol seems an easy obvious choice to start from. Other options w/o to much work?

Thought? Ideas? Ballistics (I'm not a scientist), Experience? Performance? ?

I'm not expecting to work or go beyond 300 yds. I SPR'd a Draco x39 pistol and (in my hands with an Aimpoint) it is lethal accurate to 200yds and a menace at 300yds

January 14, 2016, 07:07
DSA sells a 8'' barrel FAL pistol with or without arm brace.
Easy to sbr.

January 14, 2016, 08:04
SCAR 17 is most expensivbe up front and easist to do (drop in barrel)

G3 is recoil operated instead of gas operated which has some advantages, but the "51" is not a factory gun. The G3k is, and uses standardized parts. The 51 are custom one-of. But is 12.8" short enough? For a fighting rifle, it is ideal. For a toy, maybe not.

DSA's 11" isn't very reliable. The 13" is much better. Dwell time and all.

Buy a 16" elite and cut to 13".

January 14, 2016, 10:41
I don't think it is out yet, but I have been looking forward to a Galil ACE in 308 as a pistol.

Just another potential that could be here shortly.

January 14, 2016, 10:42
If you like breathing, I recommend a fixed-breech weapon.

January 14, 2016, 11:01
I don't know what kind of velocity you want/expect or even what you want the rifle to do
Do you reload?

Something you may want to consider is the 300Blackout. A 10.5" should give you about 2,000fps with a 110gr Barnes bullet.

My 300s are dead reliable. No big coincidence, it works well with a pistol length gas system. An 8.5"bbl would still have enough dwell
A 10.5bbl will work well with most handguards. A 12.5"bbl is still short and will produce about 2,100fps

You can start with an AR pistol and go to an SBR when the stamp goes through

To me it doesn't make any sense SBR a 308 as you still have the weight and size of a 308 receiver. All you gain is 7.62x39 ballistics

If you decide to suppress or shoot sub-sonic suppressed, it would be great to have the 1-8 twist of a 300BLK vs the 1-10 of a 308

Iv'e built 2 of them if you have any questions, PM me