First let me preface this by saying I looked at Bellm's webpage for parts reference, so I could be way off on my terminology.
I bought a used 45-70 barrel off of GB. I have had it for two weeks but just tonight put it on my frame. It mounted and locked-up fine, or so I think. But I can't cock the hammer. If I push the barrel into the frame I can cock it. When I mounted the barrel I noticed that the ejector was slightly rusty. Is it possible that the locking bolt spring may also be rusty/dirty and thus not allowing the locking bolt to engage and not allow the hammer to be cocked? If so, can the locking bolt spring be saved, ie. soak it in Hoppes or oil. Or does it need replaced. Or am I complete off here. Three other barrels lock up and allow the hammer to be cocked, so I'm pretty sure it is the 45-70 barrel and not the frame/action.
Thanks all.