Oldest that still get shot occasionally include a late 1800s CS Shattuck 10 ga twist barrel shotgun my mom's uncle market hunted with, another uncle's 30-40 Krag, a 1903 ,32 Colt, an early Smith Hand Ejector, and my brothers Smith lemon squeezer 38 S&W. I have a Belgian ml double I used to shoot til I used a bore scope and saw the erosion in the breech and a H Leman 38 half stock percussion I haven't tried yet.