fouled bore
Member
I was just looking around at entry level .223 bolt action rifles hoping to find one in 1/10 or 1/12 twist rate. I was thinking about a prairie dog gun that I would use shooting 40-55 grain varmint bullets. The slowest twist I found is 1/9. I know I could get a 22-250 with a 1/12 twist but I have so much .223 brass I would like to stay with .223 Rem. When I see a .223 gun with a 1/7-1/9 twist I think of it being a 556 chamber. Doesn't the 556 chamber have a longer throat than the .223 Rem chamber? If using a 40-55 grain bullet in a 556 chamber with it having to make the long jump to the lands along with the fast twist loose some accuracy?