I've loaded 9mm in 115 gr. and 124 gr. form for a few years now. I load Berry's 124 gr. RN plated bullets over HP-38. In the last few boxes I've noticed that a bullet or three will get the jacket crumpled after seating (see picture) per box of 50. I've tried to shoot a few of these and they won't chamber in my G19 or S&W M&P.
I am producing these in my Dillon Square Deal B which I've been doing for years. No changes in process or the components. Flaring the case just enough to seat the bullets as I always have. Can't figure out why these bullets' jackets are crumpling right where they're seated at the case? Any thoughts?
I am producing these in my Dillon Square Deal B which I've been doing for years. No changes in process or the components. Flaring the case just enough to seat the bullets as I always have. Can't figure out why these bullets' jackets are crumpling right where they're seated at the case? Any thoughts?