I'm at my wits end on getting consistent seating depth with my pistol cartridges especially the 45 ACP. Using any dead length seating die in my progressive presses ( Lee Loadsmasher, or a new breech lock pro), I can carefully set up the seating die EXACTLY. Then when I run a batch and check them, they run about
.008"--.010" longer. Same results with hard cast, plated, hi-tek coated and jacketed. I'm careful not to short stroke the press, but something must be limiting the upward limits of the ram. I have only one last guess to investigate. The factory crimp die. It does require it be touching the shell plate, and it offers resistance to the upward stroke. I'm awaiting a Redding pro crimp die as a last ditch to this annoyance. If I try to readjust while loading, even a minor change results in hunting + and -, never hitting a sweet spot.
Anyone encounter this phenom? Was there a solution.
45 ACP seating depth.
1Bud.
"If we don't succeed, we run the risk of failure"---- Dan Quayle, 1990.
"If we don't succeed, we run the risk of failure"---- Dan Quayle, 1990.