Load development with SEATING DEPTH first

[DaveTooley]

During the rifle #1 test. When you find pressure and start seating your bullet .005 deeper per group and you see your pressure drop. I’m guessing you increase powder to get back to the pressure you seen before and continue on with the test @DaveTooley

Old thread I know

That's correct. I do most of my tuning at 200 yds. As the jump increases pressure drops. Sometimes that shows up as vertical on the target. When I see that change, if everything else is at least encouraging I just go up on the powder some and retest. Taking into account current temps and anticipated temps that the rifle will be exposed to.

 

[DLT]

That's correct. I do most of my tuning at 200 yds. As the jump increases pressure drops. Sometimes that shows up as vertical on the target. When I see that change, if everything else is at least encouraging I just go up on the powder some and retest. Taking into account current temps and anticipated temps that the rifle will be exposed to.

Thank you