Don't use the damn balistic computer either...takes too damn long. I learned my craft when sniping was an art, you had to have skill, not just push a button.
My shot was with an old Barret's bolt action single shot, and it was a snapshot, less than five seconds from aquiring the target to putting it down - I did have a really good spotter though, that helps a lot. he gave me spot on distance and windage.
Oh these kids today...clicky here and clicky there and then the wind chages and they have to get the computer to redo everything and thirty minutes later they're ready to shoot...but the target went home and is having lunch!
I don't sound like grumpy old man do I?