Small Rifle Primer Suggestion for Lapua brass on 6.5 Creed

[mkelly]

Which primer are you having the best results? Any suggestions would be greatly appreciated.

 

[Supersubes]

Small rifle mag Primers are what most people use. CCi probably tops the list in popularity. Both the 450 and br-4 are the exact same primer. Save your money and buy the 450’s.

 

[mkelly]

Thanks

 

[Fig]

Aren’t the 450s magnum and 400s regular SRP? Totally agree on the BR-4s. They’re the exact same things, but I think they’re 400s and not 450s.

 

[Supersubes]

Yes, 450 is SR magnum and the 400 is a standard small rifle. Only thing that makes a 450 and a BR-4 “magnum” is the cup thickness. The priming mixture is the same.

 

[mdmp5]

I don't shoot creedmor, but 6.5x47L. I started with wolf small rifle magnums and they worked great, but I was getting hang fires. Now I use Remington 7 1/2s and they work very well.

 

[Pvt.Donut]

I initially tested some Remington SR Primers (non-magnum). I was getting bad cratering even at my lowest loads and blew out a primer approaching the max. Switched over to CCI SR Mag primers and that cured that. No cratering and I'm getting great velocities over standard LR primed brass in my 6.5 Creed. I could probably push it hotter but I'm keeping it conservative in case I get a rainy match.

 

[kujuak]

Please educate me on relevance of "rainy match" and how hot you load. How does rain impact pressures. thanks for the info and pardon my ignorance. Oops just looked it up, wet ammo leads to increased pressure, who would a thunk!!!!??? thanks for the heads up.

 

[nexusfire]

CCI 450

 

[Pvt.Donut]

Please educate me on relevance of "rainy match" and how hot you load. How does rain impact pressures. thanks for the info and pardon my ignorance. Oops just looked it up, wet ammo leads to increased pressure, who would a thunk!!!!??? thanks for the heads up.

Yep, you got it. Water doesn't compress. You get it in your chamber and it takes up room and increases pressure.