was testing my 308 over 300yds yesterday (no wind at all) windage fine at 1ooyds but drifts right until at 300yds it is approx 20cm right (rather than falling in a line below the aim point).
now the rings and bases (hilver) have grub screws that connect them so it would appear to be a case of move right screw out and tighten left but the amount would be such a small amount that it would be hard to guage. Is there a fool proof way of setting up the rings to ensure the scope and the bore are in perfect alignment?
Until now I have had ringmounts or rings and bases with no windage adjustment and they tracked perfectly with no lateral deviation. shooting the 243 at the same time yesterday at the same time also produced no lateral deviation (and a cracking 1" 300yd group)