I'm looking for a new coyote rifle. I hunted coyotes a lot growing up and through college, but moved to an area where they were scarce for a few years so I sold my rigs. I've moved back into Coyote Country and want to start calling again...

My options right now are either a .308 or .223 (MAYBE use this as an antelope gun also?) in:

Remington 700VTR (too light, but it's a 700 action and a neat new barrel design?)

Ruger 77VT (Does Ruger still overbore their barrels? Ruger trigger's still suck. I'm a ruger Handgun collector, but I'm usually let down by their rifles)

Savage 12FVSS (I'd like I have a little finer quality rifle, no doubt on the accuracy and reliability, but it's just a workhorse.)

Bushmaster Varminter AR-15 or Predator AR-15

I want my rig to be stainless, which the Remington isn't, but I'm ok with that, and I'll be using it on coyotes out to at least 250yrds, if not 400yrds.

Most accurate rifle from this bunch? Pro's and Con's for each?