Re: Zero shift on travel to new location.
The 500m check to reduce errors at other distances is a good idea, however [and for the purposes of theoretical examination, assuming that the rifle has not been roughly mishandled] why, when conditions are apparently (as good as)identical –less a 600 mile move North- should the zero move? I can't explain it to myself!
My confusion is caused by the fact that the zero shift was discovered when fired under broadly identical conditions to those where I zero at home:
roughly the same alt and temp,
same bipod off same surface (grass/mud),
same rear rest,
Using a rifle built like a girder: its action is glued and bolted to the stock chassis and its barrel has almost enough free-float to get your hand around it! (a minor exaggeration!).
Why then, given that everything is apparently the same (within tolerance!) should the zero drop 2cm at 100m when I travel around 600miles North; only to return to zero when I travel S again?
The only major variable is the 600 mile location change.
It makes no sense !! [img]/ubbthreads/images/graemlins/confused.gif[/img]