andym79 wrote:So how much RPM is too much?
Relating to how much twist is too much at 50-300 yards not 1000, how slow can you spin it or fast depending before its too slow to buck the wind or too fast and affects accuracy?
Is a 1:8 too fast, would a 1:10 be better?
Depends on the bullet, and possibly the bore finish. 52gn bullets swaged out of .22LR brass disintegrate at about 3200fps in my 8"-twist ruger, keep them under 3000fps and they're fine. Around 275,000rpm is the limit for those I think. But the 35gn Hornady's stay together just fine going significantly faster. The faster you can spin the bullet, the longer it will remain stable.