That's why there is no substitute for time at the range. The more you shoot, the better you get, it's called practice. It's not just going out and verifying that your zero from last year is still good, it's shooting from different positions, different distances and different conditions. I try and treat my big game rifle skills like I do my competition skills, the more you shoot the better you get. I shoot between 750 and 1000 rounds a week in practice for my competitive shooting. I also take one of my big game rifles with me and try to shoot at least 100 rounds thru it too.