Primer seating question

[boudin]

I was going to pull this cartridge apart and put a new primer in it as this one is not seated exactly right, but I wanted to see if y'all thought it was necessary. It's not protruding much, but you can see the mark where the firing pin hole is contacting the primer. Would this have presented a dangerous situation if I hadn't caught it and fired it?

 

[former naval person]

Re: Primer seating question

NO

 

[1shot2kill]

Re: Primer seating question

no shouldnt be a problem however i have had a few primers that just wouldnt seat in all the way and my tikka pierced the primers wich could have turned dangerous so if your primers wont seat all the way use a primer pocked uniforming tool and slowly remove a very small amount of material

 

[QRE23]

Re: Primer seating question

Even Lapua brass, which IMO is the best you can buy, has a tiny little radius at the bottom of the primer pocket. You probably don't have to uniform Lapua primer pockets and cut that radius out but it takes so little time to do I just go ahead and do it anyway. Then I know for sure the primer is sitting down in there flush and square.

 

[PLeighton]

Re: Primer seating question

I'm a big fan of the lyman primer pocket uniforming tool.
Just chuck up the cutter in a drill and you can prep a few hundred an hour.

It is part of my brass prep regiment.
Whether or not it is necessary is relative to your personal level of precision.
Hell, some people don't think cleaning the brass is necessary...

 

[Jasmck]

Re: Primer seating question

No, just fire it.

James

 

[Victor N TN]

Re: Primer seating question

Just for grins, look at the face of your priming tool and see if the circle you see may be an impression from a machine tool mark on that punch.

If that is, in fact, a mark from the firing pin hole on your bolt face, you may have a problem.

But I would shoot them all day long. I pay MORE attention to the primers AFTER they have been fired.

 

[QRE23]

Re: Primer seating question

You aren't by chance using the small primer pin in your priming tool are you? I've seen marks similar to those when someone didn't switch to the larger pin when seating large primers.

 

[boudin]

Re: Primer seating question

Thank you everyone for your input. To answer a few questions, I do use a sinclair primer pocket uniforming tool every time I reload. The mark only occurred after chambering the round, which I did because I could feel that the primer wasn't fully seated in two of the cartridges and they were already loaded so re-pressing the primers a skoosh wasn't really an option. I have had two that I loaded in the past, that I could not completely close the bolt on because the primer was poking out too much. I believe it's just a problem in my priming technique, although, it's not really a process that I would think requires all that much finesse. I'm using the priming tool that comes on the Redding Boss, but I think we will be upgrading to a hand priming tool in the future for the added feel.

 

[Victor N TN]

Re: Primer seating question

One thing I really love that LEE makes is the Auto Prime. Invest $15 and leave the press priming alone. Priming with a bench mounted device is for me, just practice in crushing primers. I use the Auto Prime for 95% of my loading. The remainder is done on the Dillon.

 

[CastleRocker]

Re: Primer seating question

Looks like a priming tool print to me.