2tonyb,
Thank you. If I could make a suggestion, go with the DPMS. It's the same gun sans coating and it costs about $300 less. Although, Remington's customer service has been great in my opinion. That in itself may be worth the extra dough. 320 yards is a great shot on a coyote, especially without a rest. I made my longest shot earlier this year during a coyote derby. It was about 350 yards up hill with no rest. I was shooting the .257 weatherby magnum (my favorite coyote round). There's something very rewarding hearing the death "thud" when you hit a flesh from a long ways out.
The R-25's do shoot nice though. On Sunday I shot a 3/4 inch groupout the back of my truck when it was breezy and raining. I'm sure with handloads and ideal conditions it could do better than that.