Am I doing it wrong? Primer Pocket Uniform and primer seating...

TheCoyote

Lil-Rokslider
Joined
Feb 28, 2021
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Location
Tucson, AZ
I have always just used the priming tool on my RCBS Rock Chucker press. It is clunky and slow but it works.

Now I'm down a rabbit hole. Would another tool make my handloads more accurate? Should I use a pocket uniformer? Should I spend money on another priming tool? Would there be a noticeable difference in ES and SD?

I currently have been washing my brass with the Frankford Arsenal tumbler and steel pins. It gets the pocket really clean.

7 PRC ADG brass. Current ES:30 and SD:10 with 10 shot groups.
 
More accurate ammo? Not likely.

Personally, I wouldn’t go through the trouble of uniforming.

I have the Primal Rights CPS and it’s sped up my loading significantly. That’s where I’ve benefited the most - less time at the bench.
 
I have an old school uniformer and every new piece of brass has the pocket uniformed. After that, I only clean them out.
If I am getting better ES and SDs because of it, I honestly can't tell because I have not compared "non-uniformed" to "uniformed". I do know it allows for consistent seating depths and consistency is key.

I will also echo what waspocrew stated and that a primer seating tool is worth the expense for the speed factor alone. I used the Lee AutoPrime for many years, but bought the Frankford Arsenal Platinum hand seater a couple of years ago and I really like it.
 
When I started reloading I was flash hole deburring and pocket uniforming all/most of my brass.
That rifle probably isn't accurate/precise enough to show a difference, and I doubt I could shoot the difference then or now. At the time I didn't have a good chrono, so no idea on effect of sd/es
I stopped doing that. hell, nowadays if the brass is cleanish I just wipe the outside before lubing, only tumble if visibly dirty (like the case fell in mud). If I do tumble, I tumble primers in. Pockets never get touched.

if you want my uniformer (RCBS large primer size) and flash hole deburrer (K&M) ill send em too you. free to a good home.
 
I think the Hornady boys did some large sample testing on uniforming. Wasn't worth it.

I do see people talk about geeking out on different priming methods. But I've yet to see people show the results in large sample tests.

I just use a rcbs hand primer and everything shoots pretty dang good. But if someone was like here's a 30 shot group with hand priming vs the latest and greatest high tech priming tool. And the high tech method group was say 15% better or more I might switch.

Kinda like powder dispensers. Man I want a V4 or even the RCBS Match Master. But my old basic RCBS charge master lite still works. It produces loads better than my inability to call wind.
 
I think the Hornady boys did some large sample testing on uniforming. Wasn't worth it.

I do see people talk about geeking out on different priming methods. But I've yet to see people show the results in large sample tests.

I just use a rcbs hand primer and everything shoots pretty dang good. But if someone was like here's a 30 shot group with hand priming vs the latest and greatest high tech priming tool. And the high tech method group was say 15% better or more I might switch.

Kinda like powder dispensers. Man I want a V4 or even the RCBS Match Master. But my old basic RCBS charge master lite still works. It produces loads better than my inability to call wind.
I'm in the exact same boat. RCBS universal hand primer, charge master lite. Think about changing all the time to get accuracy to better than 0.1gr and lower my SDs. Did the math for the ES spread at 600, won't matter. If we were chasing accuracy at 1,400+, I would definitely upgrade (and probably wouldn't be running a 9lb rifle with an 18" barrel).
 
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