I have a rem 700 300 utltra mag that I love 100%. But last year I shot a mulie with it and did a lot of damage. I know I can drop down to a 160 grain, and would still be a little over kill for mule deer, but I'd be okay. I'll be sticking to rem 700 for my next rifle but I'm not sure what cal would be the best. I want the longest, flatest shooting cal I can get that will do the job on yotes, antelope and small deer. I know most of the time shots are not that far but I want the capability to be able to reach out there. I don't have the time or patience to reload so I'll only be shooting factory rounds. I'm more concernedwith theavailability than cost on the ammunition. So, my question to you more qaulified than myself is which cal, 243,25.06,270,308,or other? I know you guys have probably had this conversation a thousand times, but your expertise and advice will be greatly appreciated!!!

Thanks In Advance!!
Bryan