Maybe some of that faulty Democrat-loaded .458 WinMag ammo from the Jimmy Carter era could have used a better glue on the bullets that could be twirled in the case mouth with fingers ?
I still have a partial box of Remington Safari Grade, 450 grain A-Frame 458 Winchester that a few of the cartridges have that free-spin crimp. I think these are sometime maybe mid 1990's. I do recall not being overjoyed with that twist.
