.45 ACP lg primer issue

[Steven57]

Loading up some more case and have some Speer nickle plated in standard and +P markings.
About one in 6 primers did not want to seat fully and/or would pop while seating and a small sliver of brass would be in the priming tool.
Using a Lee Turret Press in single stage mode (removed the turning rod) I was priming after flaring the bell and on a few the case needed to be pushed back in the holder fully to seat a primer.

Any ideas to look for? Regular brass hasn't been issue although some RWS was a little stiff getting a primer in. This is all once fired from my guns.

 

[splattergun]

I haven't had this problem yet, still waiting for my dies, but as I understand it, .45 ACP brass now sometimes has small pistol primers. I suppose it depends on which plant they're manufactured in.
Have you checked for that?

 

[tcoz]

I use a Lee Turret and have never popped a primer. Some .45 acp brass does have a tighter primer pocket but none have ever failed to seat entirely unless I was trying to insert a large primer into a small primer pocket which I can generally recognize right away. If you haven't already done so, check your brass.

 

[Lj1941]

Even after you determine if it is a small or large primer - check for a crimp.I found some small primer cases with a crimp. Not all but perhaps 10% of the smalls also had a crimp. You always have the possibility of a crimp with the large primed cases. It is a double whammy PITA.

 

[Wreck-n-Crew]

Those Lee single stages give me seating issues as well and I just use my priming tool. If you have one seat those with it. I primed 150 cases and did not notice it as much until I reloaded a few and checked the OAL with the calibers. The case was rocking where the prime was not fully seated. Haven't used it since. Figure I aim to upgrade to a progressive soon enough anyhow.

Another thing...(I may have missed it) are you using the correct size priming tool for the press? (think someone mentioned this already).

 

[gamestalker]

Definitely check to see of they are large or small pockets. This is something fairly new to 45 acp, so be aware of the two sizes. The good news is, if they do happen to be SPP's, it won't effect or alter the load specs., other than using a SP primer.

And I as well would like to reiterate making sure you are using the large priming rod. I could see how the small rod could detonate a primer, especially a stubborn one.

GS

 

[Drop45]

After going through a batch of 45acp cases i found about 60 or so that had crimped primer pockets, so I bought a pocket swager from RCBS. I figured out I'd be needing one down the road anyhow. Works great.