Hello Ladies and Gents, this is my first time to post on here becauseI just joined your site and I am proud to be here. I am in Afghanistan now fighting the ground war with my fellow light fighters of the 10th Mountain Division, and I plan on getting a long range hunting rifle when I return home. I am a big fan of Remington M700, so I have been looking at three models in .300 WIN MAG. Not .300 Ultra Mag. The 3 models are the XCR Tactical Long Range, the Sendero and the Varmint models, all in the same caliber. I have taken notice of the difference in barrel designs, fluted vs bull barrel. I do not think the fluted barrels are thick like the varmint, but I may be wrong. I want to be comfortable shooting out to 700 meters with the weapon system. I do want a thumbhole stock, but they must be put on aftermarket. Please take the time to read this post and give me a good reply. Climb to Glory, 10th Mountain.