depends on what kind of barrel you have. if you have a riffled barrel ive had good luck with the winchester super-X made by BRi and the lightfield exp's. for a smoothbore ive had good luck with the winchester super-X rifled slugs and the Brenike rifled slugs. the winchester rifled slugs ($2 a box) are cheaper than the brenikes($5 a box). The lightfields and BRi winchesters are about the same at about $8 a box of 5