What year was keuffel and esser transit with serial number 770002 made?

Is 300 win mag short or long action? On a Marlin Model 62 I found the number 3537 on the barrel does that indicate a SN or marking numbers and if so what year was this gun made? What is the most powerful bullet? What is the best non C02 pellet pistol on the market? What is the value of a 12 gauge double barrel shotgun black powder? Did harringtonrichardson make a model 649 revolver in 9 shoot? What is the a 410 and 22 over and under worth? How much is your Ithaca model 37 shotgun worth? What is the value of an American gun co New York side by side 12 genuine armory steel chrome bore dbl exposed hammer serial 272861 with a 1 under the barrels in pristine condition? What is the value of a Meriden shotgun with serial number 73355? What is the value of a Winchester model 94 30-30 Winchester serial number 284063? What is the value of a 25 caliber Browning depose pistol serial 230818? Where can you find a manual for a Springfield model 951? What is the shortest legal length of a shotgun by ATF rules in Arizona? When is the manufacture year of Browning Sweet Sixteen serial S58075? How much is a 1843 may16 serial no 560320 black powder .44 cal pistol engraved by w.l. ormsby. New York made in Italy f.llipietta worth? What is the value of Savage model 10 243 rifle? How do you take apart desert eagle 44 magnum? How much is a 1979 Browning Citori 12 gauge worth? Can older model Browning Citoris with fixed chokes be bored to accept screw in chokes Thanks John?