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I also have a good friend who actually knows how to use a rest, but does not believe in shooting groups on paper. He's not really interested in consistent accuracy, but in cranking out LOTS of ammo on progressive presses.
I also suspect he doesn't own a chronograph--or if he does, it's buried in some dark corner of his garage--but do know that instead of looking up handloads in manuals, he tends to call me for suggestions about cartridges he' s never loaded for. He usually calls his human loading manual at least once a year, because he buys and sells a lot of rifles.
Like many long-time handloaders, he keeps adding powder until the rifle shows signs of distress, then reduces the charge a little. I've never actually see him work up a load, and don't particularly care to, but during the process he apparently shoots at dirt clods and rocks, and his rifle ends up sighted-in for hunting.
This actually works pretty well, even on small animals like prairie dogs, because unlike the father-son duo my friend buys very good rifles and scopes.
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Calling Captain Kirk ...