Gramps 2 I had this issue with a L691 Sako in 375 H&H and several gunsmiths tried to fix it but couldn't. In my case I got a good suggestion from here to turn scope 90 degrees. I know a bit of a pain as horizontal becomes vertical etc. Often the case mouth hits just the turret rather than the tube. Since then, I often wonder why they do not put the turrets at 9 & 12 o'clock instead. Will never happen because of conservatism but it would make sense.
BTW I have a 85 in 9.3 x 66 in low optilock QD's with a VX -1 2-7 and now with a 4 x 32 Conquest. Fortunately no problems.
