1) I have a custom 722 in 308 thats a 1/4" MOA rifle. It is a single shot that a silouette guy got tired of( why,,,,I don't know). What's a "real" long range limit for the 308 on whitetail? Not the "I chunked it out there 1500 yds. and I'll be dogone, it hit'em" answer. But real life dependable...