Well I believe I have found out why this rifle was only $340... the barrel is worn....
I haven't shot it, but I placed the round into the muzzle and the casing touches the muzzle.
My question is, is this an accurate way to measure muzzle wear? Or should I still take it to be checked out and have the gunsmith use a muzzle gauge on it. I don't want to have to buy a new $200-300 barrel if I don't have to...