I have a 1.85” sico harvester big bore that it clears, but with less than 1mm. Not sure if it would contact under recoil. My 1.65” Diligent enticer S clears with like 4mm at the closest part. I’d say 1.75” cans and smaller will be no issue. The top rail is 0moa. No way to cant it or i would run...