Baker-

You're welcome.
On zeroing from the bench, it's important to consider what's happening with the rifle during the 'internal ballistics' stage of the shot.

The zero from the bench is often (most often) different from the zero from a hunting position.
This is the reason there is such a thing as a 'Standing Bench' for use with big bore rifles and double rifles.
The shooter stands, the bench surface is high, and the only means of support to the shooter is via a sandbag which doesn't contact any part of the rifle. The shooter handles the rifle as it he would in a hunting situation, supporting the back side of the support hand with a sand bag, his body and rifle able to move under recoil totally uninhibited by the bench or supports.

Especially with the big bore, heavy recoiling rifles, the adjusted 'sight zero' should perfectly reflect the point of impact from real hunting positions.
It makes a difference, and getting range results to match field performance requires some special consideration.

--Tinker