I have on hold at a store, a used Henry 22 rifle...probably 20 to 30 years old or so don't recall the model. Store wants $69.00. I looked it over today and noticed the barrel had a little wobble where it meets with the receiver. Is this a problem? The guy (this was at Cabela's) said there is a pin that holds the barrel in place and it might just need to be replaced. Would this be an issue? Would a new pin take care of the problem? It (the pin) is located kind of at the forward base of the receiver, near where the barrel meets it.