That is a nice gun Jim.
Do you recall where the 'dollar's worth of dimes' really came from? I recall that from a Billy the Kid story.
Even with shorter barrels, there is not much spread, out to 20" or so. There is probably a video of dimes. In the '60s, there were flechette rounds. The preference was #4 buck, over those darts or slugs. Or a buck eighty
https://youtu.be/QkH8m9KQzNk?si=rc3PgCLp1O2Bd4LY
