What you think about using magnum PRs in 54R cases w/CBS?

[hardwood34]

Just got check my inventory and found 800 Federal 215M Large Magnum PRs. I used them some time w/J bullets (reduced loads).
Powders I have : 2400, Unique, Win 231, Power Pistol,H 4895, IMR 4198 and Varget (and dacron filler of course).
Thanks.

[Larry Gibson]

As long as the load is worked up with the magnum primer it should be fine. However, if one just uses the magnum primer in a top end load it may cause accuracy problems at the least and psi problems at the most. Work up the load.

Larry Gibson

[44magLeo]

None of those powders need the mag primers. I would save them for powders that need them. If you don't have standard primers, get some.
Leo

[WILCO]

I would save them for powders that need them. If you don't have standard primers, get some.
Leo

Larry gave a great answer, but Leo said it the way I would've.

[fa38]

I would not dismiss the use of the Fed 215 primer. I use them in a 30-30 green dot load and a Swiss Precision Powder 210 powder load in a 7mm Mauser and they give better groups than with 4 other primers tried in those loads.