Get a .44 steel top strap pistol like a Remington or Rogers & Spenser.
If you want a Civil War replica rifle you've got to go with a .58 caliber rifled musket like an 1853 Enfield or an 1861 Springfield, maybe even a Remington Zouave. I found my Zouave on Gunbroker for about $200 shipped to my front door. It's a lot of fun and it sure can rock the neighborhood on Independence Day!
For a rifle try the "Hawken" rifle, its a nice (but not really authentic to any time period)
Like a lot of modern "homages" the model being sold was never in existence. For example Brass framed 1858 Remingtons & 1860 Colts.Huh?
Don't forget the towel!
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And get some of these for revolver shooting:
http://www.dixiegunworks.com/product_info.php?products_id=7713
Drop a flask-measured powder charge in each and "cork" them with a ball at home. Quick, tidy, and safe.
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You must be in the N-SSA? I'm in the 13th confed Inf.
BABY WIPES!!!???!!!
Long ago. Not anymore.
2nd MD. Cav., CSA and 17th Va. Inf.