No biggie 32ACP just got wired and the 32MM objective dictated 32 MM rings. SHXT happens pal. Brain farts become quite common with age HAHA. My only advice is buy quality rings to prevent damage to your scope tube and heed warnings to how tight the screws are tightened. 15-18 inch pounds is more than adequate for most ring tops. If you dont have a torque wrench, try to borrow one,or two fingers like thumb and forefinger are around the values your looking for.