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Fouling round always good idea.
Do you have a chrony or access to one ? These days I tend to run a ladder first up, starting in sensible (middle) of recommended range (can vary widely depending on source of info) for the powder/pill combo going up in 0.3gn intervals - just one load at each point.
Go up to book max plus a few more above that. Shoot the ladder from low to high and watch VERY CAREFULLY for over pressure signs as you close in on top end. Fire in groups of 3 or 4, allow bbl to cool between. I find this the fastest way & uses least amount of precious components, to establish
a) what's safe load & what speeds that provides
b) a node where you're likely to find low ES & good accuracy.
Then I can narrow in on a accuracy load based on 3x at each load. Then fiddle with jump if needed.
+1 and also try and number each individual shot 1, 2, 3, 4 etc. on the target if possible
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