Don't know much about the Creedmoor, but have three rifles chambered in the 260. My first was Jap 7.7 that was my dads I had rebarreled, custom wood stock, and a ton of other work for my granddaughter, for long range target practice. The second was a model 7 I had rebarreled with a 20" Shilen barrel, blue printed and pillar post bedded the stock for my granddaughters deer hunting rifle. I already had a 6.5x284 I had built, but I like those two 260's, I had to build me one also in a Model 700. Now I'm giving strong considerations on building one on the AR frame. So, needless to say, I've become very fond of the 260 and think it's about one of the best mid size rounds available.