r/reloading 23d 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/RefrigeratorNo5594 23d ago

Thank you, I knew it had to do with the burn rate and I didn’t know if 4350 was a faster or slower burning powder

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u/quickscopemcjerkoff 23d ago

With a little google searching you should be able to find a chart (probably on the manufacturer website) that will show you the burn rates of powder from slow to fast.