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I think Marshall, Dan, and the rest gave some positive answers as to how to approach a safe load. Anyone that has followed my posts and answers over any period of time, know I get touchy when talking about maximum loads. It is my opinion that max loads are not neccessary most of the time and the small amount of velocity gained does little if you are shooting game. There has been, over the years, suggestions as to measuring the expansion of the brass, ahead of the rim, on factory ammo....using that as a guide. This works fairly well if you use the same brass as factory in your reloads. The other most important point brought out is the seating depth of various bullets of the same weight. This is a most significant factor, especialy with the faster burn powders! The difference in standard and magnum primers is the temperture in the middle of the flash, not the amount of priming mixture. There is a high and low spec on primers, tested by the drop test. One must remember, in testing primers, that if one primer came from a batch running on the high side of specs, and the other running on the low side of the specs, there will be quite a difference. Flash holes can make a real difference on max loads. The tolerances in the firearm , among other things also. So.....the point is, why
run to risks of working right up on the red line of pressure? The overall gain of velocity is low compared to the risks involved. This certainly is not aimed at taking away from some of our members that tests all matter of things involving loading, but I will warn that what might be a max load in one firearm could be a bomb in another.
Best Regards, James
run to risks of working right up on the red line of pressure? The overall gain of velocity is low compared to the risks involved. This certainly is not aimed at taking away from some of our members that tests all matter of things involving loading, but I will warn that what might be a max load in one firearm could be a bomb in another.
Best Regards, James