Originally Posted by Sycamore
be interesting to see at what velocity/BC/distance that temp RH and air pressure make a 1 inch difference in POI.

I really don't know.

I expect to hunt between 4500 and 9500 feet ASL

temp between 0 and 90 F (30-60 F most often)

BC - .350 probably (is that officially a ping pong ball?)

distance 100-250 yards.

ps appreciate the original post. useful, easy to understand, helpful same as how to mount bases, scopes, rings (degrease, degrease, degrease)



At 250 yards it's pretty negligible.

Assuming 2900 fps MV, at 250 m your bullet will drop the following amounts from a 100 m zero:

4500 ft ASL, 0F
9.1"/0.9 mil

9500 ft, 90F
8.4"/0.8 mil

Not even a 1" difference. At further distances the differences become very large.