This probably isn't the place to put this, but the mods can move it if it isn't.
Chairgun is nice to have, as is Strelok, but even if you put in all of the correct data (temp, altitude, BP, etc.), the results may not equal the real-world.
I do use Chairgun, and what it gives me I use as a starting point since I shoot and hunt at high altitudes (>3,000 feet). To get dead-on, I travel out to the range, and use a lot of air and pellets. This also gives me a chance to determine what the mil dot spacings represent at a magnification I prefer to shoot at (other than say 10X).
And personally... If you're in a shooting contest, I suspect range cards are a very important attribute to have. But in the field while hunting, range cards are a nuisance! And so is fiddling with the scope elevation! That's the reason I go to the range to make sure I know exactly where the pellet is going to hit, at any reasonable distance, and use the mil dots to get there. And ask yourself this question. When's the last time you watched Ted fiddle with a range card or adjust his scope while plinking pigeons?
