Originally Posted by arrow
Thanks for all the help guys, I see what you are saying. I shot a group of 3 right where I was aiming at 100. Shot that group. A little later that day shot a couple more rounds at 100 just to confirm and everything was good. Would it be beneficial to forget about that day for now and try everything again starting fresh next time and see what happens? Jeff do you always confirm zero at the start of a shooting session? Does it ever change on you?
I periodically check my zero's. But they seldom change. If I have something look like it was wrong I will check it pronto. But it was usually me.
I have seen rifles loose zero, it can almost always be narrowed down to scope or mounts. And more times less expensive rails and rings than less expensive scopes.
You do need to go shoot again. Get a log started, record your load data, rifle, field conditions, angles of shot, dial up used and how low or high the impact was. Then once you have enough actual field data, you can reflect on this data from home to get your drops spot on in your program.