Im working on a load in a 454 Casull and a 300gr gc boolit. I've used 26gr of W296 in the past it looks like I should be around 1400 fps with it. This weekend I tried 13 gr of unique with the same slug it went across the chronograph at 1210 fps with a SD of 16.5. I don't think a deer or any other game would notice the 200fps. What are your thoughts on dropping the heavy Magnum powder out all together?
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