Hey guys. The A-5 "Light Twelve" has recoil rings that fit around the magazine tube and these can be arranged in two ways, one for light loads and the other for heavies. I know how to set them up in both cases, but I've never figured out when to switch from one setting to the other. Can anybody tell me what constitutes a "heavy load" by Browning's standards circa 1960? I don't want to batter the gun needlessly by leaving it on the "light" setting when I shouldn't, but likewise, I don't relish field stripping the gun halfway through a CRP field because it won't cycle the shells on hand. (I'm off on a S.D. pheasant hunt Friday, with no time to test different loads before taking this gun as a backup loaner for my brother-in-law.) Any advice will be appreciated. TT