I have had a 3.7 - 10 x 50 Simmons on my Savage 210F for 13 years. There have been no problems and the combination has proven accurate to 150+ yards. Many boxes of ammo have gone through the gun. I use 2 3/4 inch Remington Copper Solids because the 3 inch, which I did try, seemed unnecessary. In spite of the pounding this scope has taken, it seems uneffected.