You can't go wrong with any of your options, like you said any would work. I've always been impressed with a fast moving .25 on deer. After having shot and hunted several 300 WSM's with 175's for 20 years I wanted something different so my last was a 300 SAUM (KW Rifles) and another 6.5x47L (Wheeler) matching hunting rifles. Almost did a 25X47L but also shoot LR for fun with the 6.5 and 140's. I like 30 calibers and will aways have one. As Alex suggested the 185 were gas and go.