Shooter works very well, and I have been using it all day on the range with a THF member. A .260 that had never been past 200 yards went 800 with no issue, using Shooter as a guide. $9.95 is a heck of a deal. I really like the extensive bullet library it has and I use that feature very often. As far as giving corrections based on environmental conditions it does need a cell signal, and so will every other app. The only way around that is a Kestrel with Horus or Applied Ballistics and that is way more money than $9.95
The roads lead from Wills Point to Wolfe City. Come out and shoot, and maybe I can help a bit.
800 Yard Steel Rifle Range
Long Range Shooting Instruction
Memberships and Classes Available