One can purchase a CVA muzzleloader from the official website of CVA. These hunting equipment costs between 100-600 dollars and comes in numerous specifications.
1:28
You need to seek the services of a good gunsmith.
The CVA 45 caliber blackpowder with the serial number 0025524, could only be 2 years old by the year 2014.
Around $250 to $450 dollars, depending on where you shop. This website has all the CVA Optima V2 rifles in stock www.muzzle-loaders.com
A CVA Revolver with the serial number b52937 could be worth anything. But with your discription it is hard to put a price on it. How much it is worth depends on the condition it is in. It could range from nothing to a couple thousand.
CVA is s reproduction gun
Cabela's or Dixie Gun Works would be your best bet, or gunborker website.
Anything from Thomspon Center will be far superior then CVA. There barrels are all magnifluxed, and pressure tested (CVA does samples but not each barrel) and TC is just a better quality gun. They have the best instruction manuals in the industry. If you are looking for a cheap TC knockoff, go with a CVA.
No published sn data.
"Best" is a subjective term that depends, among other things, on your skills, intended use, pocketbook, "feel" of the weapon, etc..
There are no known date codes for CVA, but with a low serial# such as yours it is obviously early in that models production. IF the model was known I could give you an idea of the year based on when production started. If you need help with identifying the model the online auctions like gunbroker, auction arms and proxi bid are good research tools. Enter what you know in the search (CVA .45 black powder) or (CVA 45 muzzleloader) and compare photos to what you have. You may have to search archives or completed auctions, but you should have good luck.