My 882 hates those Supremes! Hmm, funny. So far, it seems the Remington Poly-Tips work the best. As the barrel heats up, the 7 shots are in a string all touching. If I let the barrel cool down more, they'd easily all touch but in a hole only maybe an MOA across. Do Marlins have a special history of being especially picky? Or is that just a issue with all guns? It just seems a bit strange to me that one barrel would like one ammo the best, and another barrel would hate that ammo the most. But hey...it happened!