Yep, and stall holders had a gizmo bolted to the stalls to speed load the magazines I recall, plus besides the knock down little figures in boxes to get points for (carp) prizes, there were ping pong balls on waterjets inside steel wire mesh bowl shaped bases to shoot at, or bottles with fivers taped on held by a piece of string to try and cut (not much chance with round shot, but a diablo fired backwards would work in a break barrel if the string was frayed or against a pipe!
ATB, Ed