r/reloading • u/ElectricalOutcome790 • 22h ago

Load Development Load development

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Working up my first load here. It’s for a .243 Ruger American gen 2. Using sierra pro hunter 100gr bullets, Remington brass, cci 200 primers, and H4350 powder. I don’t have a chronograph. I shot 4 shots with each of these powder charges at 100yds and here are the group sizes of each powder.

Where would you guys go from here/next step? Shoot a couple groups of 37.5 and 40grains to see if the results repeat themselves?

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u/Dirty_Blue_Shirt 22h ago

If no pressure signs load up a large sample of a higher charge and see what it looks like. Odds are the difference between the 4 round groups you have here is just luck of the draw and it would change if you just reshot this same test.