I used to go .0 & .5 til I found a good load, then go .2 increments either side so basically .1,.3,.5,.7,.9 etc… chasing accuracy. Last couple years I’ve simply loaded .0,.5 til I found a good load, tested seating depth's then quit. Am I missing anything substantial by not fine tuning powder charges between whole and half gr charges? Hunting rifles.
This is what I do. I'm no match shooter but I get some really nice groups.
Okie John