I used to... I hunt almost every day and none of my rifles have changed zero in 40 years. I shoot the same ammo and have used Swarovski/Kahles glass for the whole time. Now, if I knock the gun, I will check it, but these optics are pretty tough and I can only think of a couple of times that they have changed from bumps slightly. Very slightly...


"If there are no dogs in Heaven, then when I die, I want to go where they went"
Will Rogers