Re: 6.5 real world dope
If u have shooter or strelok at the range it is easy, helk used to do this before i had a chrony and smart phone. Establish 100 yd zero, next shoot at 500 at a big piece of cardboard. Add some elevation before hand unless it is a refrigerator box. Measure drop in inches,moa, mils whatever. Then use shooter,jbm or whatever to find velocity. Enter all environmental data, altitude, bc(.585) and about 2800 fps. Get solution for 500. If projected drop is more then actual u need to enter higher fps velocity. If the projected drop is less then actual, enter lower fps. This is how i used to get a ballpark on my handload velocities before i got a chrony.