Decapping issue
Quote from Reloader on February 8, 2016, 1:06 pmI started having an issue with depriming my 40 cal. casings. I am using an RCBS resizing die. I have the die screwed down till it is just touching the shell plate. The depriming pin in also adjusted so that it almost make contact with the inside bottom of the case. 3 or 4 casings will decap when the casing has barely entered the die. Then, I'll get one that only partly decaps, even though the casing has fully entered the die. This has become a problem since I switched calibers over to .40 S&W. I've loaded thousands of 40's with no issue before now. The dies were not changed in any way since they are in their own tool head. What do you think the problem may be?
I started having an issue with depriming my 40 cal. casings. I am using an RCBS resizing die. I have the die screwed down till it is just touching the shell plate. The depriming pin in also adjusted so that it almost make contact with the inside bottom of the case. 3 or 4 casings will decap when the casing has barely entered the die. Then, I'll get one that only partly decaps, even though the casing has fully entered the die. This has become a problem since I switched calibers over to .40 S&W. I've loaded thousands of 40's with no issue before now. The dies were not changed in any way since they are in their own tool head. What do you think the problem may be?
Quote from Reloader on February 8, 2016, 2:05 pmI expect the problem is not 'partly decaps' but fully decap and returns partly back into the case as the case is removed from the die. IE: The primer sticks to the decap pin and gets pulled back into the case.
Double check that the decapping pin is not split or flared out at the end.
Try rounding the end of the decapping pin with a fine file and polish the pin with 1600/2000 grit sand paper, then place a drop of Hornaday One Shot dry lube on the pin.Might want to try a replacement pin.
Dillons resizing die has a spring loaded decapping setup. This greatly reduces the number of primers that can stick to the decapping pin (pops it off the pin on exect from the shell case). You might want to pick up a Dillon resizing die.
I expect the problem is not 'partly decaps' but fully decap and returns partly back into the case as the case is removed from the die. IE: The primer sticks to the decap pin and gets pulled back into the case.
Double check that the decapping pin is not split or flared out at the end.
Try rounding the end of the decapping pin with a fine file and polish the pin with 1600/2000 grit sand paper, then place a drop of Hornaday One Shot dry lube on the pin.
Might want to try a replacement pin.
Dillons resizing die has a spring loaded decapping setup. This greatly reduces the number of primers that can stick to the decapping pin (pops it off the pin on exect from the shell case). You might want to pick up a Dillon resizing die.
Quote from Reloader on February 8, 2016, 5:28 pmlcp, I was thinking about that a little while ago. I bet you are right! I will try to flatten the pin right now. I also just happen to have One shot dry lube and the fine grit automotive sandpaper. If that doesn't work. I will buy a Dillon resizing die. I have a Dillon 9mm resizing die and it works great. I will let you know if the filing works. Thanks
lcp, I was thinking about that a little while ago. I bet you are right! I will try to flatten the pin right now. I also just happen to have One shot dry lube and the fine grit automotive sandpaper. If that doesn't work. I will buy a Dillon resizing die. I have a Dillon 9mm resizing die and it works great. I will let you know if the filing works. Thanks
Quote from Reloader on February 9, 2016, 7:00 pmlcp, I was thinking about that a little while ago. I bet you are right! I will try to flatten the pin right now. I also just happen to have One shot dry lube and the fine grit automotive sandpaper. If that doesn't work. I will buy a Dillon resizing die. I have a Dillon 9mm resizing die and it works great. I will let you know if the filing works. Thanks
lcp, I was thinking about that a little while ago. I bet you are right! I will try to flatten the pin right now. I also just happen to have One shot dry lube and the fine grit automotive sandpaper. If that doesn't work. I will buy a Dillon resizing die. I have a Dillon 9mm resizing die and it works great. I will let you know if the filing works. Thanks
Quote from Reloader on March 8, 2016, 2:59 amI started with RCBS dies and had the same problem, I switched to Dillon and I haven't had it since .
I started with RCBS dies and had the same problem, I switched to Dillon and I haven't had it since .
Quote from Reloader on May 27, 2016, 12:27 amGet the dynamic decapper pin and solve the problem. It did on mine in 9mm. Went from a 5-10% loss rate down to zero just by changing the decapper assembly.
Get the dynamic decapper pin and solve the problem. It did on mine in 9mm. Went from a 5-10% loss rate down to zero just by changing the decapper assembly.