Thanks for the replies, I'm going to go ahead and get the 52mm, its too much money to take a chance and not be happy with the 42mm and have to do it again. It was pretty much what my gut feeling was telling me but I haven't got to look through one and its a lot of money to spend blindly.Its good to hear from people that have actually used them, it makes the purchase a little easier. Its going on a new custom 28 Nosler, trued vintage 700, 27" X-Caliber 1;8, #6 contour( same as Bartleins 3B) Manners EH1 stock, muzzle brake. The action is from my dads 7mag, he bought it the first year remington came out with it, I had reservations about tearing it down but he wanted me to use it, he said he wanted to keep it hunting, it deserves that much. He said buy building on it he knew it would get hunted and not just sit in the safe. He's 79 and still gets out with me, gotta luv it. So I figured this gun deserves the best I can afford to put on it.
Dave