I agree Tipton. We use our radar and balllistic calculators all the time. We validate everything, usually in 10yd increments but mark our turrets every five yards. With both of my boys and I shooting and validating, it would take forever without ballistic calculators to get us close to start. I guess it has to do with how far you like to shoot, with how many guns, and how many different projectiles. My boys and I each use pellets but at different velocities and different slugs each. I can’t remember all that! I’d be lost without a radar and ballistic calculators!
I use Shooter, Strelok, BallisticARC and Chairgun Pro. For airgun use, Chairgun Pro is easy and does a great job at accurate calculations, the ability to make turret tapes and scope cap, reticle drop cards...And it’s free!
Stoti