I have used T/C scopes on 450 marlin encore pistol,454 raging bull,480 ruger as well as others and I never had an issue with them.I don't think you can expect to shoot sub MOA groups from MOST revolvers and especially not until you send a few pounds of lead downrange.I generally shoot hundreds of rounds per year,handguns take much more practice than a long gun..JMO
Jim