I have a 300 ultra mag and a 7mm ultra mag, I like the 7mm more, it is the best gun I have ever shot.
I shoot a 150 grain balistic tip with RL25 powder, I am shooting at 3494 fps, have a leopold scope that I sent to premier retical and it has mill dots and cross hairs to 900 yards. this gun will shoot 5" groups at 500 yards evertime out. I have a brake on it and the recoil is about that of a 25-06, the bad part of a brake is the noise, it is very loud. I have shot three kinds of brakes and they are all loud, so loud I carry ear muffs with me when I hunt and I alway put them on before I shoot. These are both great guns,hope you get one you enjoy. Good Luck