There are several ways to get what you want: Several brands offer 50 cal in-lines for right around your price range. Check out Walmart. Second you can go on line and look at auction sites like gunbroker.com or auctionarms.com and once you register you can bid on used/new muzzleloaders. Just check your state laws on the shippment of black powder firearms and whether you need to go through a FFL holder. Oh, your age would require someone over 21 to do the actual purchase, however, I find a few really good deals on line. I just got a TC triumph for $280.00 including shipping. I would suggest you go with an in-line to start with because the loading is much simpler using 2- 50 gr pellets. Just do some more research before purchasing. Good luck shopping.