U.K. Brian said:
If working right it will be way deeper than your Bounty Hunter. It was the follow up to the best selling Fisher 1260 that pioneered normal speed motion detectors. Before discrimination relied on either whipping the coil or later a faster than normal sweep speed was needed. The 1260 got it right but did lack a little in depth. The 1265 provided the depth to keep up with even many of the modern detectors on the market.
Weight is around 3.9lbs with the stock 8" coil. Many really liked the dual discrimination feature which Tesoro couldn't see the point of but then copied some years later with the Tejon. In some ways it was better than the 1266 that followed that had increased depth but the discrimination didn't keep up.
You could get some nice smaller coils, sniper ? for really getting between rubbish and a five inch. Only problem is going to be does it still provide the depth it should as its going to be really old now and componants do start to fail over time. They are noisier than many modern detectors so you have to be prepared to use your ears and good headphones and listen to what its telling you. If you can compare against your present detector and its not as deep then it needs a service and I suppose that means a third party repairer as Fisher is no longer the original Fisher.