Primer ?? in 7mmWSM

[Buzzsaw]

I came accross 2000 Remington 9 1/2M primers. I have been using Fed. 210M's under 62.0 4831sc, Berger 180 VLD's.

My question is, if I switch to the 9 1/2 magnum primers should I change my load any? What difference should I expect in performance?

Thanks for reply's and no I can't sell them.

 

[ackleyfan]

Re: Primer ?? in 7mmWSM

I would back off a couple of grains and work back up just to be on the safe side!

 

[95LTZ]

Re: Primer ?? in 7mmWSM

This was safe in my rifle. 62.2grs. RL22, Rem 9 1/2M, & 180 Berger. I have another 7 WSM new to me that likes 210 Fed. primers. I have yet to try the Rem 9 1/2M in this rifle. In years past the Rem 9 1/2M primer was my go to primer. As always start low & work up when changing components.
Semper Fi

 

[Buzzsaw]

Re: Primer ?? in 7mmWSM

Thanks 95LTZ