The
demi-culverin was a medium
cannon similar to but slightly larger than a
saker and smaller than a regular
culverin developed in the late 16th century. Barrels of demi-culverins were typically about long, had a
calibre of and could weigh up to . It required of
black powder to fire an
round shot (though there were heavier variants firing or round shot). The demi-culverin had an effective range of .