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Which superformance powder is it you are using? I was told there's a few different ones, is that correct? I also heard that one of them is an excellent powder for magnum chamberings so might be worth picking some up to have a play around with my 7mmRM
This is the Superformance powder I use for my 300wsm and also 260. I know the factory loaded Superformance ammunition has different blends for different calibers, but they have only released this powder as far as I'm aware?
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