Pick which ammo you think is gonna work, sight it @100, then do a tall target test at 200 and 300. Put your drops in an app - Strelok or Applied Ballistic's etc, and go from there. Should be able to sight it in with 5 or 6 shots, another 3 or 5 to group it, and 3@200, and 3@300. Should still have a few rounds left in the box to go shoot an animal.
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