I picked up a 150 a few years ago at a gun show, paid 300 for it. Good blue, good original stock finish without the typical crack at the wrist, never been rebuilt. It shoots great, H&N wadcutters and RWS R10's both shoot around 540fps. Is that right for a 150? Was thinking of sending it off for an overhaul so it would be good until I die, just hate letting it go off into the unknown for a month or two for the refurb. Thanks--