STIRRUP—Only for light crossbows—In general an average of 5 per minute
Accessible quiver: 44
Difficult quiver: 48
CORD AND PULLEY—Only for light crossbows (provides 2:1 mechanical strength)—In general an average of 3 per minute
Accessible quiver: 76
Difficult quiver: 80
BENDING LEVER or GOAT'S FOOT loading mechanism—Only for light or medium crossbows (provides 5:1 mechanical strength)—In general an average of 2 per minute
Accessible quiver: 116
Difficult quiver: 120
CRANEQUIN —medium or heavy crossbows (provides 145:1 mechanical strength)—In general an average of 1 per minute
Accessible quiver: 236
Difficult quiver: 240