I have a guy who is trying to sale me a browning belgium sweet 16 shotgun. We are doing this this long distance over the phone. This gentleman is elderly and is not real computer savy. He say the marking he sees on gun are 1kg 049 (16-70) 168. He said gun does have a vented rib and was rated at 90%. Does this mean anything to anyone. Like i said with out seeing gun or photos i do not know if he acutally has a sweet 16 or just a a-5