I want to Thank Everyone for all the kind remarks, and i just have to single out Intoodeep! That's a good one,in my book it ranks up there with Tropico's "photo" of the pirate hat added to the pic of Terry C in his biker gear........ I measured the bore before any shooting and it's a nice smooth .580, the .577 Minie's work perfect! The Minie Bullets i'm using have 3 grease grooves filled with Remington Wonder Lube, the bullets also have a deep hollow base that expands on firing to make things even tighter! If i can figure out some kind of sights, like Mike and Tracy's scope rail, minus the scope, the 75's "sheild" kinda gets in the way. Anyway, i'll try Oranges on a stick at 200ft, during the Second Annual New River Valley Cannon and Mortar Shoot.