Reason I ask is because I have the holy grail of Remington 760’s. It is a 35 Remington in a carbine version. Metal is near perfect the stock is flecking some of the varnish and don’t think a normal forum would cough up the coin...
I have both bought and sold on GB, no issues with any transaction that I've done. What I have experienced when buying is seller holding my gun until funds clear then shipping, I don't have a problem with that. I usually send a money order so I don't have to pay a 3% fee.
You could do the same with your rifle, just start with a reserve and see where it goes.....