Yep, I know the feeling.
The Remmie was the first BP gun I bought.
You'll have to search your area for an outdoor range. None of the indoor ranges I frequent allow BP or subs to be used, not just because of the smoke, but because unburned powder collects in small, out-of-the-way places and has been known to cause flash-fires.
Anyway, join us over in the handgun thread and join in!