Old post brought back from the dead but I'll put my $.02 in just in case. I shoot a Browning Gold Hunter 12 ga. and it loves Win. Partitions. Win. BRI's group second best followed by Remington Core Lokt's and Federal Barnes EXP's. I choose to shoot the BRI's because they are cheaper and work fine on whitetails. Anything bigger and I'd move up to the Partitions. The Remington Core Lokt's seem to have the most energy though. I only have one fired Core Lokt slug because the others went right through the packed newspaper target.