I use the old school method. Draw circle on paper, fill in with Sharpie. Set target at 50 feet, Remove bolt & looking thru bore center target in bore, adjust scope to circle. When everything looks good, fire one shot, should be on paper, adjust as needed. Don't worry about fine adjustment at 50 ft. Set target at 100 yard, first shot normally will be one to two inches high due to trajectory.
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