One hand or off hand?

When referring to shooting Bullseye which is correct, one hand or off hand?

To me, bullseye is both. I equate off hand with un rested shooting. For rifle, usually standing is off hand, but kneeling, sitting, prone, or benched are all supported positions. Pistols, even with both hands, I think of as off hand. I may be all wrong though.

Patrick

Correct would be one hand.

I have seen it written as "One Handed, Unsupported" which I would bet is a nod to the rifle terminology.  This phrase leaves little doubt.

John