NoDakhunter
Lil-Rokslider
That’ll put you at 318k rpm if I remember hornadys formula correctly. There’s only one way to find outI’ve got a 22arc coming together, and I’ve got a box of these 75 eld ms to try. I’m thinking velocity might end up near 3100 ft/s out of the 20” barrel I’ve got - will these be at risk of blowing up due to high rpm’s with a 7 twist?