Although usually dismissed as a gimmick, IMHO a two-projectile load from a .38 or .44 snubby has potential far beyond winning bets for beer money.
Old School Big Bore doesn't say what velocity he was getting from those two 116 grain wadcutters. But at 750 f/s they should be just shy of meeting the FBI's 12" minimum penetration goal. Trade the 116 grain WCs for NOE's 150 grainers and 625 f/s should give 12" penetration in 10% ordnance gelatin. And if you're still worried about marginal penetration, just use a stubby little
"as cast mushroom" instead of the wadcutter and bare gel penetration will be well within FBI specs.
The downside is that recoil will be all that you (or your Bulldog) will want and you probably won't win any 50 yard slow fire matches with the load.
So, why bother? Especially why bother when a 220 grain HBWC at 650 f/s (and loaded as intended) will give 18" of penetration, as much wound mass as the classic "FBI load," and all the accuracy your Bulldog has to offer?
It's worth bothering because two projectiles could give you as much wound mass as the best JHP (assuming the JHP works as intended) as well as an increased probability (that has not been well-considered or appreciated) of hitting something "vital."