I'm stuck loading some 357 mag R-P cases Nosler 158gr JHP with CCI 500 and 13.7gr of AA#9. The R-P brass gives the least neck tension of any brass I have, I normally use the this brass with .358 dia. lead bullets.
To prevent bullet jump with this R-P Nosler combo I seat and crimp in two steps, and that works well but it requires some extra adjustments.
I did a test batch of 25rnds with a heavy roll crimp that slightly buckled the case mouth and then used a 9mm/38spl Hornady taper crimp die to iron out the bulge. My brass is trimmed to 1.280" I'm anxious to see if this works.
Has anyone tried this or a similar method ?
To prevent bullet jump with this R-P Nosler combo I seat and crimp in two steps, and that works well but it requires some extra adjustments.
I did a test batch of 25rnds with a heavy roll crimp that slightly buckled the case mouth and then used a 9mm/38spl Hornady taper crimp die to iron out the bulge. My brass is trimmed to 1.280" I'm anxious to see if this works.
Has anyone tried this or a similar method ?