Surely in a 223 1 in 8 twist will not cause them to poof ??If you can tolerate the poofers they are a good bullet. I can not, so I buy Sierras.
Surely in a 223 1 in 8 twist will not cause them to poof ??
Mmmm.No. Not even close.
Mmmm.
I had 75's coming apart in a 223 bolt action with a 1:8 26" barrel with ~ 2000 rounds through the barrel. The barrel had been JB'd every few hundred rounds. The RPM's on the bullet were ~ 290K.
After backing off the load so the RPM's were under 280K, no more disappearing bullets.
Right. Unlikely.You were getting 3200 fps out of a 223? 290k is over 3200 fps.
Right. Unlikely.
It's been a few years. Went and checked - it was a 1:7 twist.
Sorry about that.
Yep. Exactly.It happens.
7 twist hits 290k at about 2850.
To be safe just stay with 8 twist with the 80s and down.![]()