primer seating

[gunner52]

I have some new brass and have to apply considerable force to seat the primers. They are at uniform depth and there is no apparent deformation that I can see with the naked eye. Will a slight deformation effect ignition to the point of effecting accuracy or is depth the most critical thing?. They all require the same pressure to seat and i'm using a RCBS hand primer. Should I open them up a bit with a uniformer? Thanks in advance for the advice.

Gunner

 

[ChadTRG42]

Re: primer seating

It's not uncommon for virgin brass to have a firm primer pocket. It will feel even more firm when using a hand primer. As long as they are seating evenly, it's fine. What caliber and brass are you using, just curious?

 

[gunner52]

Re: primer seating

Lapua 30-06

 

[DRAM40A1]

Re: primer seating

As I said, the uniformer will only uniform depth and will not effect sides of pocket. I use Russian primers that are very tight also. They loosen up and get easier to seat after firing a couple times. The beauty of tight fitting primers is they last longer before getting loose. There should be no effect on accuracy. On my new brass, you can actually see a flattened spot where I cram them in with the RCBS hand primer.

I definently hold the case away from my face when priming new cases......Neverhad a problem though.

 

[gunner52]

Re: primer seating

thanks sarg.

 

[ChadTRG42]

Re: primer seating

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: gunner52</div><div class="ubbcode-body">Lapua 30-06 </div></div>
Yelp, you're GTG. Lapua are normally tight.

 

[CK_32]

Re: primer seating

Yea I've heard Lap brass was a pretty stubbern virgin brass. It should get a littl easier after you shoot it a few times.

 

[leadbullet]

Re: primer seating

you should only worry when primers fall out of the their pocket by themselves

 

[Country]

Re: primer seating

I uniform all primer pockets as a matter of course. It is just way better for feeling the primer go down into the base of the pocket.
Makes the job of using a hand primer much easier and precise.
Once you do it you don't go back .