I would be concerned with the front wad comming out of the case if I fired full power ammo in the revolver.

Back before Speer Shot Capsules were avialable many people used gas checks as the wads. A hard crimp would hold the gas check in place.

However with the Speer Capsules you use a lot more shot.

I have gotton lazy... as I just buy the Factory Speer Shotshells.

I have been using them for years, they work great.