That's likely a good idea, EDELWEISS, with primed cases.

I bought a side by side Field hammer gun in 2 1/2" 12 bore for shooting at rendezvous.

The gun is sweet and working the hammers was not a big deal. Missed 2 birds (or was it 1?) on the quail walk
thus pulled out a second place. There were close to 50 shooters.
The fellow who won, was shooting a 2 3/4" chambered modern single shot with a hammer - choked, of course. Had to get on them quickly with the cylinder bored double.
All black powder loads, of course.