The best way to determine actual value is to search the on-line auctions, such as www.gunbroker.com and www.auctionarms.com or even www.proxibid.com enter your details in the search and see what is selling and for how much. You can also search the archives and or sold items to get an idea of what your gun is selling for. Another place to look is The blue book of modern black powder values, available from www.midwayusa.com and www.bluebookpublications.com as well as many of the other hunting and firearm stores. That will give you an idea of the general value. Guns tend to have some regional value too, say a Thompson Center Seneca may be worth a bit more in the north east than in the mid west,and a Ruger old army may sell higher in the northwest than the east coast. Don't forget condition has allot to do with value, so compare apples to apples.
22-72
a32 caliber black power connecticut a thousand dollar
fill it all the way up get 1000 fps no worry about blowing up
depending on condition $150 - $250
Chances are that if you overload the charge in a revolver style black powder pistol, you can blow up the cylinder or blow the barrel off the end of the gun.
read whats printed on top of the barrel. re=pros have the Italian makers mark......
Yes it is concealed, but not illegal because black powder firearms are not considered a "firearm".
1gran per caliber
I would need to know the caliber and type (revolver, single shot. flintlock, percussion) to answer the question exactly, but the best place to start is with as many grains of powder as the caliber divided by half for a hand gun or revolver as a MAXIMUM LOAD. So a .45 cal. would be about 20-23 grain. I usually start out around 12-15 grains and work from there.
Depends on the caliber. A .45 caliber pistol uses about 40 grains of black powder. Contact the maker's website and download the owner's manual for YOUR gun.
The BATFE website has the answer.
You need to consult a Black Powder loading manual