my older speedmaster won't load the next round without the bolt jamming into the side of the shell casing. instead of the round coming up level into the breech the round angles up and the bolt hits it on the side. the slot where the shell passes through is clearly worn and it seems to me that this is why it doesn't enter the chamber flat. ? is, antone know where to get a replacement barrel for this firearm? or have i got my moneys worth and time to look for a new 22 autoloader, btw, the rifle is a very straight shooter and i have had it for some time, would really like to keep it. thanks happy shooting