Two turkey loads out of my brothers side by side 12 gauge, both triggers on a dare. My arm was bruised from shoulder to elbow. Awesome. Also my thomson/center contender in 7/30 waters, with a ten inch barrel it sounded like the world was coming apart. Hell of a handgun. And a converted sks full auto. Not legal but not mine. Still a hoot to shoot.
M16 no bolt assist full auto, M60, LAW, Claymore, M 203 grenade launcher with practice rounds HE and FLECHETES , Ma duce, grenade baseball style, saga 12, winchester model 1873 don't remember the cal, savage. 243 pistol, don't remember the model # 14" barrel bolt action
I was gonna say one of my wheelocks or Evan's Repeating Rifle but my hexagonal-bored Whitworth or .69 caliber minie-ball shooting 1842 Rifled Musket (a little more customized than this with long range front sight).