OK all, I know these are very close in all applications, especially if they both have 24" and with magic powders like R26. I am looking for a possible build. I currently have a 280 rem and its a take driver, but I'm looking for a lighter rifle and a little more barrel. I could fireform all my 280 brass if I went the AI route. Most of my local smiths have the AI reamers and do not have the regular 280. If I bought a reamer by cost goes up. I hear bad things about renting reamers, have friends that rented reamers and things went badly. My focus is a 160-170 weight bullet, and possibly the 150 on occasion. And maybe I leave well enough alone and pack the weight and keep what I have. What are you all shooting and how do like it. If you would please give me your thoughts. thanks