Originally Posted by gafferq2xl
However, IMO I don't believe in them because they are only good for a specific load, altitude, baro, temp, humidity and velocity.
"... I don't believe in them"
Is that like not believing in the Easter Bunny?... as in it doesn't exist?
Or is it that you haven't figured out how to use them and make them work for you.
I "believe" in them - I have three MK4-M3s and one M3-long range.
They are extremely fast, and for game that only gives you a fleeting moment to range and shoot, there is nothing like them.
I recently put together a long range .264 WM rig for feral dogs, and on it there is a MK4-M3... 5 to 7 seconds from seeing the dog to firing the rifle.
They work very well if you know how to use them, and how to make them work for you.
Leupold will make custom "cams" for any cartridge, or your own supplied numbers.