magnum primers


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Don357
May 28, 2015, 07:28 AM
Can you use magnum primers when reloading 9 mm? I ran out of standards but still have a lot of magnums. BTW, I'm using a 115gr fmj with 4gr of Bullseye. Any suggestions?

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steve4102
May 28, 2015, 07:48 AM
Start low and work up.

jwrowland77
May 28, 2015, 07:55 AM
Yes you can. As said, just start low and work up.

ku4hx
May 29, 2015, 07:32 AM
I've been doing it for years; decades before there were any "panic" buying shortages.

I suppose if you were on the ragged edge of a cylinder/chamber bursting load a magnum primer might push you over into the danger zone so to speak. But for "normal" loads do as advised: start low; work up ... same as always.

The only "danger" I foresee is some magnum primer cups are proported to be harder than non magnum. Couple a weak hammer or firing pin spring with a hard cup and you might have ignition problems.

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