[quote=Jollan]
thought the welrod was a breech loading single shot, where you had to screw the bolt back, place a bullet in the chamber and then screw the bolt in again. at least, the one in the picture. there are others that work like that though but they look a little bit different.
[/quote]

:O
I thought it was single shot too! But Wikipedia shouted me down ;( 
I'll see what i can do, perhaps i can help the wounded and dying.