troy fairweather
Member
Anyone hear ever ream out a 300 blackout barrel to 300 hamr. Don't see any reason it won't work I know the twist is different and the blk are normally carbine or shorter gas tube length.
A 1-7 or 1-8 twist should be fine compared to the hamrs 1-15" twist I believe they have, don't think it has the power to over spin the lighter bullets and the fast twist should be nice for some heavier bullets for some monos. A over gas problem should be fixed with a adjustable gas block and a heavy buffer.
brass should be easy to make from 223/5.56 and think guys use a 300blk mag for best feeding.
I haven't priced what a 300 hamr barrel runs hard these days anyway, but if bet 300blk barrels are cheaper.
so anyone do this?
A 1-7 or 1-8 twist should be fine compared to the hamrs 1-15" twist I believe they have, don't think it has the power to over spin the lighter bullets and the fast twist should be nice for some heavier bullets for some monos. A over gas problem should be fixed with a adjustable gas block and a heavy buffer.
brass should be easy to make from 223/5.56 and think guys use a 300blk mag for best feeding.
I haven't priced what a 300 hamr barrel runs hard these days anyway, but if bet 300blk barrels are cheaper.
so anyone do this?