Since a lot of you guys like numbers :)
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this is what my 1377 is shooting ,after 5 shots with 5 pumps each shot,it is stock internally,i cut and crown the barrel to 14 inches,put a trigger spring kit in,and polished the trigger and sear,and thats what she shots,im standing about 4ft away from chrono ???is that about right or should it be shooting better ???im shooting the crosman wadcutters and the pointed pellets from crosman also,again im only pumping 5 times,i will be installing a extended bolt when it comes in i dont know if that will increase numbers or not ???
The extended bolt might give you a little bit of an increase but a better choice would have been a flow-thru bolt. The flow-thru bolt places the pellet in the same location every load and that will usually give you better accuracy and again, maybe a very slight increase in FPS.
The flow-thru bolt also loads the pellet via the skirt which places the pellet in the same location even if using different pellets.
Carl