BlackdogGS
BlackdogGS
6 posts
Joined October 2016

5.56 setup problems

I just loaded a few hundred .45 ACP without a problem but when converting to 5.56 I'm having some issues. First when I try to turn the shell plate it gets hung up on the new primer that's ready to install. I never had this problem with .45. Second issue is I'm using a flat base bullet and I'm having problems balancing it on the case during the seating process. After these I switch to boat tail to make it easier and faster. What am I doing wrong?
jforwel
jforwel
32 posts
Joined November 2007

RE: 5.56 setup problems

Check the height of the primer cup, if it's too high it can cause the problem. It can be adjusted but you may want to call Dillon if you don't know how to do it. Also make sure you have the small cup in place since the .45 takes the large cup.
coderpitt
coderpitt
86 posts
Joined November 2012

RE: 5.56 setup problems

There's a wing nut on the bottom of the powder return rod. Try turning it a couple of times to raise the platform up. That might help with clearing the primers. The other thing is to check to make sure that the primer seat cup is set at proper depth. Most of the time I've experienced this, a couple of twists with the powder return rod wing nut resolved the issue.

Boat tail and cannelure bullets (with bevel) tend to seat easier than flat bullets. If you're using flat bullets you might need to flair the casing slightly, but I just prefer to use beveled bullets. I take my time reloading a little longer than with pistol to allow adequate time for the powder to fully drop.

Hope this helps,
Coderpitt
dillon
Administrator
dillon
2,867 posts
Joined July 2007

RE: 5.56 setup problems

If you are loading progressively, the primer cup will not have a primer in it when you rotate the shellplate.
For flat based bullets, you need to chamfer the case mouth to allow bullets to enter the case more easily. We sell the L.E. Wilson deburring tool, #16038 , for $20.00