blueroll wrote:Hmmm. Shooting setup ????? Weird results ???????
Stock swelling/shrinking causing barrel shift, scope rails coming slack when cold, velocity change over temperature. For instance my .223 load for summer and winter are different. If I use my summer load with 24gr of powder on a cold winter night I get a shift of 1MOA right and .3/4 MOA high at 100yds so winter time I run 23.4gr of powder as this gives me the same zero without adjusting the scope. It took me a while to work out what was going on as the shift to the right baffled me.
Heres a video of what effect I get.