Sorry to revive this old thread but I wanted to add a little new information: I swapped the 499 spring out for one from a new production Red Ryder. This was the ONLY change I made to this gun. I was hoping the MV would increase from the 235 fps average it was shooting to maybe 275, like a stock unmodified Red Ryder. To my surprise and delight, it rewarded me with an astounding 421 fps
average! :yikes1: And it is just as accurate
as it was before the spring swap!!
To put that MV into perspective, that is more MV than I've gotten from any
of my modified Red Ryders, and I know of only one Red Ryder that has eclipsed the 499, and that
gun uses a 499 barrel turned down to fit the Red Ryder style abutment, along with a custom made 0.157" ID air tube (stock Red Ryder air tube is 0.078" ID) and a heavily preloaded Red Ryder spring!
BTW, the Red Ryder 1938B, Model 105 Buck, Model 10, Model 1998, etc. all use the same powerplant, including the plunger tube, spring, air tube, plunger head, pin, washer and sponge wiper. These powerplants can be ordered from Daisy, p/n 169750-000, $4.00 each plus shipping.
Info on this and MUCH more can be seen at How To hot trod the Daisy lever action BB gun
. Along about page 12 or so in the linked thread, a member has built a Red Ryder repeater that shoots well over 400 fps. Really some nice work and innovative thinking has gone into the gun- including a custom owner-made buttstock. Member goes by hinz57