About this effect i've done some serious tests on an open field where the wind is very strong some days and very stable as well. I fixed my Dominator as well as i could on a bench and spent a whole afternoon testing just that. I was shooting Barracuda Match Pellets, washed and wheighted . Power : 21 joules. Temperature from 25º c to 21º c at the end of afternoon. Distance of the paper targets to the rifle : 50 meters
Results: The deflection i found on most of my shots was only to left or right. The slight diferences were always down and as i said very litle. That i think was after passing the reservoir re-charging time.
This is what i found out after a whole afternoon testing. If it happens to some ? Well than i must say i'm happy it doesn't on mine
Excellent thread though !