what all is everyone putting on their range cards? Ive been trying to decide how i want to make my range cards efficiently and im struggling. I will be doing my adjustment it MOA. I plan on having: vertical adjustment horizontal adjustment- just 5mph then ill multiply for various conditions potentially angles for every range @ 15, 30, and 45 degrees and i would like to make my series of cards with variable temp and pressures im just not sure if its safe to substitute "elevations" for pressures But i guess im hung up on how people are dealing with atmospheric pressure changes. I feel like a kesterl is the best solution to this problem, but since i dont have one whats my best game plan? I see the ballistic calculator on LRH mag uses various elevations if you print off their set of range cards, and so does JBM. I dont understand atmospheric presssure very well. The higher in elevation the lower the pressure correct? is it safe to base your range cards on average elevations instead of actual pressures? does the pressure stay the same at the same elevation at different seasons? a and finally how many people are accounting for spin drift on their cards? thanks for the advice!