300 Blackout Bolt Action

[kthomas]

If looking for .30cal subs in a bolt gun, why not just run subsonic .308 loads? Not trying to dissuade anyone from running a .300blk, different calibers are fun in and of themselves. Just curious considering it would be so much easier to do in a .308 since were is no need for AR-15 form factor.

I'm also a bit confused as to the choice of .300BLK for a bolt gun.

 

[Jamie]

I'm also a bit confused as to the choice of .300BLK for a bolt gun.

Cause choice.

The issue with 308 subs is rate of twist. My fastest 308 is 1-10 it will not stabilize heavy 220’s and has a issue with 180’s

 

[J.Hancock]

Was a 700 in 300bo on icollector last month

 

[kthomas]

Cause choice.

The issue with 308 subs is rate of twist. My fastest 308 is 1-10 it will not stabilize heavy 220’s and has a issue with 180’s

That's easy enough to fix - if you are building a gun dedicated to shoot subs, then spec a barrel with the proper twist rate for it.

However, I get that if you are looking for an off the rack gun, then you don't have that choice.

 

[joehunt]

Not just the twist rate but how much subsonic load data is there for 308?

 

[Alpheus]

Not just the twist rate but how much subsonic load data is there for 308?

Lots, 10-11gr of trailboss and 220gr bullet is pretty much the defacto standard.

Fifth post down has all you need to know: ht tps://www.snipershide.com/shooting/threads/help-with-subsonic-308-rounds.206481/

 

[joehunt]

Published data?
Trail boss is about the only option because the case is to big.