If he did not have the correct data in the calculator he would not be making hits at different distances. Calculations are just that. Validation is law. Back to the OPs question. If I were you I would try a different bullet.
What is your velocity with 69 grs h1000
If he did not have the correct data in the calculator he would not be making hits at different distances. Calculations are just that. Validation is law. Back to the OPs question. If I were you I would try a different bullet.