Powder?
How do you decide how much to use?
Load data shows a minimum and a maximum.
Let's say hypothetically, it is Minimum 5.1 grains, and Maximum 5.9 grains.
I load 5 rounds of 5.1, 5.2, 5.3, 5.4 up to 5.9, go to the range and try them.
So 5.1 does not cycle the slide well so I move up to 5.2, which cycles OK.
5.3 cycles well. so do all the rest. At 15 yards there is no discernible difference in accuracy.
Which load do I choose? The lightest one that works? The heaviest I can handle? The one in the middle?
For my snubby, I picked one in the middle that felt best shooting. Don't know if that works on a semi?