I started loading 10mm a few months ago--first on an LnL and now on a 650. I didn't have this problem with the LnL, but I don't think I was using my own hot-loaded, fired brass then.
The problem: A case will get through the resizing/decapping die, and into the priming station, with the old spent primer still in the case. The primer usually has visible signs of having met up with the decapping pin unsuccessfully: it's rounded on top.
I know there have been reports of this from Dillon users, but their problem seems to be with the decapping pin on the Dillon die, and I'm using Hornady 10mm dies. I've adjusted the die so there's extra decapping pin showing, but I'm still getting this problem with maybe 1 of 15 cases.
Could it somehow be tied to the brass being loaded fairly hot and the primers flattening out? This didn't happen with my LnL, but (1) I think I was using new or other people's once-fired brass then, and (2) I don't see how it could have anything to do with the press. (Or could it?) I'm not sure if I should adjust the die to expose even more decapping pin, mess with the shape of the pin itself, or try a different sizing die altogether, perhaps one with a spring-loaded decapping setup.
The problem: A case will get through the resizing/decapping die, and into the priming station, with the old spent primer still in the case. The primer usually has visible signs of having met up with the decapping pin unsuccessfully: it's rounded on top.
I know there have been reports of this from Dillon users, but their problem seems to be with the decapping pin on the Dillon die, and I'm using Hornady 10mm dies. I've adjusted the die so there's extra decapping pin showing, but I'm still getting this problem with maybe 1 of 15 cases.
Could it somehow be tied to the brass being loaded fairly hot and the primers flattening out? This didn't happen with my LnL, but (1) I think I was using new or other people's once-fired brass then, and (2) I don't see how it could have anything to do with the press. (Or could it?) I'm not sure if I should adjust the die to expose even more decapping pin, mess with the shape of the pin itself, or try a different sizing die altogether, perhaps one with a spring-loaded decapping setup.