If you pursue the RAR, just avoid the rotary mag.
In general I agree, but the two RARs in 6.5 Creedmoor I've owned have fed well from the rotary magazine.
It seems like some people have no issues, but many do. I personally have owned two in 6.5 CM and spent a fair bit of time with another that all had problems with the rotary mag. Of course, all three were fed long pointy bullets at near mag length, which is likely part of the problem.
