I live 500' above sea level and hunt at 9000-11500 feet. I know ballistics change with altitude, but I'm wondering if velocity does too. If I recall correctly, if I'm shooting 3280 at 500' elevation, at 11000 or so, the velocity should be higher. I guess the sure way to know is shoot the gun through my chrony at somewhere close to that altitude, but I can't do that until I go back in October. Or, do I put the parameters into the ballistics calculators and do they do the math for me?