What a possibly hot topic! I have all 3 stated, .250, 220 swift and the AR. I hunted for years with my wack n stack 243 then went to the dependable .250 then I went with a lead on long range and got a 220 with a bull barrel 26" long. I've ranged and shot a coyote at 440 yards with the 220 and missed similar shots with the .250. Then 3 yrs. ago I got the AR and its the 1st gun I grab 4 in the safe. I kill em consistantly out to 325 yrds and have had several chances at a second or 3rd dogs beacause all you have to do is pull that trigger. I've even wounded them, had em spinning in circles and followed up with 2 more quick shots for the kill. I hate slow bolt actions for that reason. I usually carry the AR for calling and the 220 for drivebys by the highway that are 2 far out for the AR. My newest mega long ranger for 500 yrd dogs is the .257 weatherby. That thing is a laser. In one year I've only shot at 6 animals with it and they all died. Rocky Mtn. goat, muley head shot, cow elk head shot and 3 coyotes. 2 were close to 200 yrds and either did a back flip and the other spread bone, muscle, blood, fur, guts in the air. Screw the pelt, I do it for the pictures. The other one was at 480 yrds in the alfa alfa and it dropped him perfect. I love Leupold scopes too on all my guns. I don't know yer budget but I'd sure buy the AR 1st if I could.