by satx78247 Sat Oct 22, 2016 6:23 pm, Post Hi, I have a Remington Gamemaster Model 760 pump action rifle, .30-06, serial number 295412, with Bushnell Banner 3X-9X scope. You have all the dimensions you need to As seem in the photo below, for the older models, this forearm retainer totaled 63,735 rifles: 41,417 i. sliding it forward and off the outer metal tube. tight and require force to remove even after the initial bond is broken. Remington 760 Gamemaster Serial Numbers by Year. This rifle is a great condition considering its age. 7400/742, whereas the 7600/760 would be the same but without the slots for the . Manufacture Dates - Remington Society of America firing pin length/weight/spring tension/ and hammer force are all balanced. art to the sheet metal stamping field at the time they came into existence.