Federal 210M and 300 PRC?

[DownhillFromHere]

I've been considering a 300 PRC build for awhile but haven't bothered due to lack of any of the components. If I ever decide to proceed, it would be nice to use an existing stash of Federal 210M, recognizing these are non-magnum primers. They're sitting mostly unused since I transitioned my LRP calibers to SRP brass.

Has anyone tried 210M primers in 300WinMag-class cartridges with decent success? Or are the 210Ms just too puny? I've never handloaded anything bigger than a .30-06.

 

[nn8734]

I’ve used 210M and WLRs in the win mag for years with good results. If you live in a real cold weather place you may benefit from using Magnum primers but otherwise you should be fine with the 210s.

 

[Ckleeves]

I tried CCI 250’s, 215’s and 215m’s in my prc and couldn’t get my ES even close to where it needed to be. I have had great luck with 210m’s in the 300 wm so I figured I would try them. Cleaned up to a ES of 9 over two 5 shot strings.

When I first started loading them in the 300 wm (tighter es once again over a 215) I was nervous about hang fires etc but after over 1000 rounds with zero issues even elk hunting in some sub zero temps I have yet to have a issue. Now this has all been with H-1000, so ymmv with other powders. I don’t think I would try to spark some of the RL or VV powders with a non magnum I have always seen better numbers with mag primers with rl33, N570 etc.

 

[918v]

It depends on the powder you’re using. Ball powders, use magnum primers. Old tech stick powders, use magnum primers. Newer stick powders, FC210 no problem,

 

[Steel head]

Recently tested 95+ grains of N570 with 210m’s and results were promising.

 

[twointhedirt]

Actually fired two ladders yesterday with Retumbo and 210M's.............77.2-79 grains no issues that I can tell as of yet

230 Bergers
225 Eld-m

 

[DownhillFromHere]

I appreciate all the feedback. So now I have primers. All I need is a bolt, a barrel, some brass, some powder, and some bullets. O, and a set of dies. Almost there...