Quote:
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Who you going to believe ... the manufacturer .... or a fallible computer program
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The "fallable" computer program uses actual data on at least one lot of each powder, and is probably based on two different lots of powder, which may or may not have been "the same" for each of the pairs of powder that are now supposed to be "identical."
I take the differences in QuickLOAD results for supposedly "identical" powders to be a real-world indication of the variability we can expect from different lots of powder, even with the same name on the canisters. That makes it a little more eye-opening.
Mike Irwin: If 231 has not changed, and the max load dropped from 5.4 to 4.7 grains, that is an 8.7% decrease. That seems like more than the 5% that SAAMI specs say should be the limit between lots of the same canister powder. It seems to back-up the old rule about reducing your load by 10% and working-up again when you change any component.
SL1