I was trying to finish up 400 prepped cases for the acp, and got to a box of RP brass. I had already loaded 4 boxes of WW mil and Winchester brass.... I'm trying to use up a box of Ranier brass plated 200gr swc's. First RP case, charged it, put the bullet in the mouth, and seated it with almost no resistance. I did my normal taper crimp, and then checked it... passed the plunk test, then pressed the tip of the bullet against the bench edge, and pushed the bullet back into the case...
Tried running a few back through the sizer, sans depriming rod, same results. Mic'd the bullets and they are at .450-.451, max. They work fine in the WW brass...
Is this a known thing with RP brass? Thinner case walls? It's the only thing I can think of that would cause this issue...
I plan to load them with a bullet more in the .452 range, just haven't decided which one yet...
Fun, fun....
Tried running a few back through the sizer, sans depriming rod, same results. Mic'd the bullets and they are at .450-.451, max. They work fine in the WW brass...
Is this a known thing with RP brass? Thinner case walls? It's the only thing I can think of that would cause this issue...
I plan to load them with a bullet more in the .452 range, just haven't decided which one yet...
Fun, fun....