The Firing Line Forums - View Single Post - Hornady LNL AP tons of force needed to seat primers

k4swb · December 28, 2011, 05:23 PM

Take the whole priming plug out and disassemble it carefully so you don't lose the freaking spring.
Very carefully sand the bottom of the nut off, maybe .002"-,004".
This will allow the seating stem to go that much deeper into the assembly.
Put things back together and try it.

Mine would seat them flush, and this worked fine but mentally I wanted them a little deeper, and the above solved all my concerns.

I called Hornady and told them what I had done and was told, "That's a good idea. Wish I had thought of it."

I was also told that I wasn't the first with this issue and they would be recommending this fix, but I guess he forget to tell everyone.

December 28, 2011, 05:23 PM	#12
k4swb Senior Member Join Date: July 11, 2009 Posts: 389	Take the whole priming plug out and disassemble it carefully so you don't lose the freaking spring. Very carefully sand the bottom of the nut off, maybe .002"-,004". This will allow the seating stem to go that much deeper into the assembly. Put things back together and try it. Mine would seat them flush, and this worked fine but mentally I wanted them a little deeper, and the above solved all my concerns. I called Hornady and told them what I had done and was told, "That's a good idea. Wish I had thought of it." I was also told that I wasn't the first with this issue and they would be recommending this fix, but I guess he forget to tell everyone. __________________ My posts are things I have tried or experienced. You may or may not wish to emulate them so read them with this in mind. Compromise means that both sides give something, but they never give, they just take. I'm The NRA!