silent...so you' re not particularly selective about the bucks you shoot or are you just that gifted to have such supernatural abilities to field score an animal nearly instantaneously? I really don' t want to shoot a buck from the rut or before that will score under 140 and after the rut I certainly don' t want to go under 130 and that can be very difficult when the blood is a pumpin' . When I first see a buck my eyes go on a supersonic scan of his rack and I try to determine " shoot" or " don' t shoot" but I' ve never had a quick measuring system that I' ve used but this may be useful. I prefer for a buck to be a dink or a monster because I hate the 1.5-3.5 year old bucks that can be somewhere in that gray area.