If one only has 25 yrds to work with though, you can zero at that distance and dial down an inch. This more or less replicates the 50/200 yard zero. I am using a 100 yard zero, I think it makes the holds out to 400 yards pretty linear and flat.55 gr vs 62/64 gr will be negligible within distances up to about 200 yards. Might be less than an inch.
If you zero at 50 yards with either grain, (it's called the IBZ zero) your point of impact will be within 2 inches high or low from point blank range up to about 250 yards with no holdovers.
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