I have a Bisley Blackhawk with 7.5" barrel and a big old fashioned Tasco Propoint red dot sight, in .45 Colt -- a big handgun, but fairly shrimpy next to yours.
Practically speaking, these guns really aren't offhand shooting guns -- although I practice offhand with mine, I keep ranges realistic (sub- 25 yards), and would never take a shot in the field even at those ranges unless, from some circumstance, I couldn't grab a rest. I practice sitting using knees or shooting stick as a rest, propping against trees and saplings, resting across a branch or fencepost, etc., etc. If I'm shooting from the bench for load development, I use a sandbag rest along with nice soft pads for my body elbows.
With a decent rest the accuracy these revolvers can provide is sometimes mind-boggling.