i've looked at this a few times, and wasn't sure just what it was. Dia is posted at 2.94" and length at 7 3/4 " , weight 10 3/4 lbs. Being sold as a conf read bolt, but sabot is very odd ring of lead with an iron flat base, so pretty sure that wasn't right. does look like for a muzzle loader though. Forgive my ignorance if it's common and I should have known lol