Havent touched gun or scope in 3 1/2 years since i set it up properly. Used all year round, rain, sleet or shine.
Thats what i have been saying for 9 years Chris with Leups, incidently both use same scope.
I did figure around 16 years ago air pressure can drastically affect what happens to trajectory. Worst i seen was a 30 yard 45mm kill correctly dialled and ended up 20mm over the top, write it off as a bad day cant learn anything with that.