"Deer, elk, bear, etc." - Many of us use the .30-06 very successfully for game up to and including moose.

"Target....accuracy, reliability, ....'solid knock down'" - You're asking a lot of a rifle and caliber.This is where your choice of calibers gets even more confusing. Do you need both? Or do you just want two rifles that'll do the same things? I'm not getting it, and apparently I'm not the only one who isn't? Simply dropping the coin isn't going to magically transform you into a long-range shooter, skill plays an enormous part.

I don't know why now other than "I wanted it", but I haveten different calibers to reload. In the process, I never really get comfortable shooting any ONE of them before the hunting season changes and I'm on to new quarry with a different caliber to remember the ballistics of. There's a reason for the saying "Beware the one-rifle shooter". If I focused on using just one caliber, I'd probably be a LOT more proficient with it than I am with ten.

If you absolutely MUST have something that burns a lot of powder, then I'd pick the .300 Win Mag over the UM. I'd probably forego the .30-06 and use the cash on a REALLY good, reliablescope (I'm not necessarily talking something you can see rocks on the moon with). However, you'll find yourself well overgunned for deer in most cases. If you're like me and can find yourself spending a half day on the range or on a prairie dog town, the .30-06 is much more forgiving.