MOA and Yards works better for shootin for me too but like you my tapes measures are in mills and inches. Kinda confusing till ya get used to it.
MachV- I just looked closely at your signature and realized I'm using to small of a cartridge for varmints if the cartridge is supposed to be the same size as the game.
Those where April pups shot in South Dakota a few years ago,they where small!! The dogs had already seen some shooting and were very spookie...A close shot was 400 yards. The one round is a 223 and the big one is a 6-284 but I've been known to use the 7mag,308Baer and BMGs onem. Can you really have too much gun??