Strelok question

[fljp2002]

Fellows

Just did some chrono work over the weekend and got my sk flatnose 40gr at 990fps and advertised bc of .139

When I push that into strelok i get 2.3 mils for 100 yds and 1.1 at 75., actual where 2 mils at 100 and 1 mil at 75.

Now .3 mils is appprox one inch. What should I play with to true strelok for long range. Change the mv or bc

 

[Hitzy]

Use the trajectory validation feature.

 

[adamg]

True (tweak) the BC to get the right solution at your longest distance you have data for. 100m isn't very far, you'll get much better results if you can gather data at longer distances like 300m. Although 100m is far enough if you only intend to ask the calculator for solutions inside of 100m.