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Hogdgon H1000 1 pounders in Stock 3-1-2013 8:30 pm

How burning rate for .338 Lapua Magnum when comparing between H1000 VS Retumbo
 
I believe that Retumbo has a little slower burn rate than H1000. I don't fully understand what you are asking. If your asking which powder is best between the two for .338 Lapua, there are a few threads that should answer your question. I however only load for .300 Win mag and can't answer which powder would be the best choice.