Load development

Hey guys
I gone start to do a bit more load development
What are the recommendations on cool down in between shoots ?
I think I gone try ( like in Jim’s video ) and do the ladder test 5 times and measure all with my Chronograph. So I can pick a close spread ! And then go for bullet seating .

Do I should shoot : 1 time then 5-10 min break
Or 3-5 shoot groups and then let it cool down for 10-15 min

Depends on the barrel profile for me, but I like to give it ten minutes between 5 shot groups for an ideal test. Sometimes I’m a bit more impatient than that.

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No break in, just clean it and shoot it. Always take a fouling shot before your accuracy shot