I thought this problem had gone away, but now it is back. Cases will simply not de-prime. Like 1 out of 3 cases
Dillon 650 using RCBS sizing die/decapping pin. Die is seated such that the shell plate just grazes the die when the handle is all the way down. Decapping pin is greater than 3/16” below the base of the die. The die has no spring, the pin is fixed in place with threads and a nut. There is nothing in the die, I took it apart, cleaned it, and put a new de-capping pin in it. There are no holes in the primers that remain in the case. There is no pattern to the cases that fail, although blazer seems to occur a little more than the others, but it happens with at least a half dozen case brands.
I was reading about primer pullback, where a primer gets stuck on the pin and gets pulled back into the pocket. Is that a real thing? Apparently you are supposed to file the pin at a 45 degree angle to prevent this. Could the pin be too far below the die? Could some other action on the press be interfering? I am not having any trouble belling or dropping powder. Any ideas? Thank you.
Dillon 650 using RCBS sizing die/decapping pin. Die is seated such that the shell plate just grazes the die when the handle is all the way down. Decapping pin is greater than 3/16” below the base of the die. The die has no spring, the pin is fixed in place with threads and a nut. There is nothing in the die, I took it apart, cleaned it, and put a new de-capping pin in it. There are no holes in the primers that remain in the case. There is no pattern to the cases that fail, although blazer seems to occur a little more than the others, but it happens with at least a half dozen case brands.
I was reading about primer pullback, where a primer gets stuck on the pin and gets pulled back into the pocket. Is that a real thing? Apparently you are supposed to file the pin at a 45 degree angle to prevent this. Could the pin be too far below the die? Could some other action on the press be interfering? I am not having any trouble belling or dropping powder. Any ideas? Thank you.