Hello everyone. I have been lurking for some time, and finally decided to post. Just getting into precision shooting. I found a clean used m99 .50 today that looked really nice. The gunsmith at the store, which is rather high end, told me that it was really clean and rarely fired. I decided to pull the trigger on it. When I got home, I field stripped it to check everything out, and it looks pretty good to me. That said, I know very little about these rifles maintenance wise. As such, would you consider this minimal use? Should I take it to another gunsmith prior to firing for an inspection, or even send it back to Barrett? I don't want it to explode in my face, but to my uneducated eyes it looks pretty clean. Thoughts? Thanks in advance.