RE: cabelas black powder pistols
Like Pittsburghunter, I also bought the 1858 New Army target model for a couple reasons. The top strap will really add a lot of support to the revolver shot you ever accidentially get a hot load or a chain fire. I also think the top strap helps in aiming the revolver.
I personally went the extra and got the target model. Sure am glad I did. A friend of mine bought the standard model. Granted, while it is a great shooter, my target model just seems to be a little better at holding groups. I shoot 25 grains of Goex 3f and a .451 roundball with a wad over the powder and some lube over the ball.
When you shoot them should you purchase one, make sure you wipe out the inside of the revolver frame and the cylinder locking rod. It will help with loading in the future. Believe me, forget to wipe it out and it can be a bear getting the locking rod to slide back and release the cylinder.
The revolvers are a lot of fun. Besides punching holes in paper, they make an excellent bunny and squirrel weapon. You might not get as many but it sure is fun to try...