Trouble with Remington primers

[Russ16]

I’ve been having trouble getting my Remington Magnum Primers to seat in both 375 H&H and 30-06 brass. I’ve used a primer pocket uniforming tool. It doesn’t matter if I use my Lyman hand primer or the tool on my RCBS press about two thirds of them won’t go fully flush. They sit up just a touch. Barely perceptible to feeling with your finger but definitely a wobble when placed on a flat surface.

I’m starting to think the primers are just a touch too tall.

Has anyone else run into this? Did you do anything to correct it?

Thoughts welcome.

 

[glblanchard]

They could be a little out of spec. Try a different box or a different brand and see how it works. Lean on the RCBS handle a little harder.

 

[M70375!]

I think the Rem 9 ½ may be slightly larger in diameter than other primers. I have noticed that they seat harder than Fed or CCI. Try them if your primer pockets get a little loose with other primers.
I am now using a Primal Rights priming tool and it seats them with ease. A buddy of mine threw away some Rem primers because he couldn't get them to seat, so I think they are just a bit larger in diameter than the others

 

[Mark A Ouellette]

I’ve been having trouble getting my Remington Magnum Primers to seat in both 375 H&H and 30-06 brass. I’ve used a primer pocket uniforming tool. It doesn’t matter if I use my Lyman hand primer or the tool on my RCBS press about two thirds of them won’t go fully flush. They sit up just a touch. Barely perceptible to feeling with your finger but definitely a wobble when placed on a flat surface.

I’m starting to think the primers are just a touch too tall.

Has anyone else run into this? Did you do anything to correct it?

Thoughts welcome.

@Russ16 I also had problems fully seating the Remington 9 1/2 Magnum primers but for me, only when loading new Nosler 500/416 brass. I was saving all my Federal 215M primers for hunting and figured out how to uniform the primer pockets in the new brass.

I measured Remington compared to Federal primers and found the formed to be slightly larger. The Remington are great for loading brass when the primer pockets have expanded a very small hair...

K&M also offers adjustable primer pocket uniformers (cutters).

Frankfort Arsenal offers a priming tool with adjustable depth.
K&M's priming tool is also adjustable and has a gage to seating measure depth. This one is great for inspecting primed cases!

 

[Russ16]

Thanks.

 

[Capt_Oscar]

Not saying this is the situation here, especially if you are uniforming the primer pocket after full length sizing... Sometimes people get the expander stem too deep and the expander ball can press slightly against the bottom of the case. When that happens it can put a bulge in the primer pocket. You won't see it but you'll notice when seating primers.
As Mark pointed out, you can measure the length of primers from different manufacturers. I have Fed, CCI, and Rem. My Remington 9 1/2M is ever so slightly, longer then the other 2 but not enough it protrudes past the case head.

 

[Russ16]

Not saying this is the situation here, especially if you are uniforming the primer pocket after full length sizing... Sometimes people get the expander stem too deep and the expander ball can press slightly against the bottom of the case. When that happens it can put a bulge in the primer pocket. You won't see it but you'll notice when seating primers.
As Mark pointed out, you can measure the length of primers from different manufacturers. I have Fed, CCI, and Rem. My Remington 9 1/2M is ever so slightly, longer then the other 2 but not enough it protrudes past the case head.

I’ll measure them against other primers as soon as I can source some other magnum primers—LOL.

I’ve never used Remington before but they were all I could find. That’s part of my frustration.

 

[PHOENIX PHIL]

I tried using the 9 1/2M one time. I only bought a single square of 100 and that was when they were cheap. I had the same issues as mentioned here. They seemed oversized for my brass. Switched back to my Federals and no issue. At this point I was done with the Remingtons, lesson was cheap.

 

[Longwalker]

I've used thousands of Remington 9-1/2 and 9-1/2 Magnum primers. Never a high seating problem with any of them. I've mostly seated primers with a Lee hand tool, but also have used the seater on my Hornady press and the one on my Forster Co-ax press, and in recent years a RCBS hand priming tool.
In one instance only, I found Remington 9-1/2 M not a good match for loading Norma brass in my 9.3x74R double barrel Beretta rifle. They seemed to seat a little too deep, and I also had a bad firing pin. The tip of the firing pin had been eroded from a pierced primer when firing a cheap factory load and was therefore too sharp. Changed the firing pin, changed from seating with the Lee tool ( it has no depth stop) to seating on the Co-Ax press and all was good again. So not much help for your situation, but I don't think Remington primers are generally faulty. I like them.
But measuring is a good idea. Remington is the one brand that has had the most quality control fialures of any brand of ammunition in my experience. I've seen them ship out messed up bullets, and deformed cases, so why not primers.
Best wishes for you finding a solution!