You need to seek the services of a good gunsmith.
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.
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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
It's on the barrel under the forend. You'll have to remove the forend.
Cabela's or Dixie Gun Works would be your best bet, or gunborker website.
A lot of what makes a muzzle loader the best is dependent on the price you want to pay. Ashland Guns inline muzzle loader is called the best by some but comes at a price of over $2500. Others consider the Accura by CVA to be the best at $600.
"Best" is a subjective term that depends, among other things, on your skills, intended use, pocketbook, "feel" of the weapon, etc..
The CVA website has a downloadable user's manual for your rifle. Go to cva.com, FAQs, scroll down to user's manual. Read the entire manual before attempting to shoot your rifle.
what do you want to shoot.
CVA stands for Cerebrovascular Accident, a.k.a Stroke.
Probably about $150. Let me know if you still have it. Thanks
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.