Im running low Burris XTRs and EGW rails on 6 different Savage rifles. They offer plenty of clearance with up to 50mm obj and a Varmint barrel even with flip caps my one medium XTR is on a long action with 20 MOA rail 50mm and varmint barrel and just as soon as I have the extra 50$ im going to change it to low rings. IIRC I think I have a little over 1/4 inch clearance after the caps are installed.

Larry