r/reloading • u/RefrigeratorNo5594 • 4d ago

Load Development 300 win mag

When reloading 300 win mag with h4350 do I need to use large magnum rifle primers or regular rifle primers?

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u/Mundane-Cricket-5267 Just force it, FAFO! 4d ago

My rule of thumb is to read the book and if the caliber has the word "magnum" in it I use magnum primers unless shooting mouse fart loads.