Hey GuysWould the DF II made a decent 25 cal pumper?What would be the estimated results for it?I only have 1, 25 cal rifle.Tia,Your thoughts or suggestions............Don
Hi SBWell I made a lite weight hammer out of the OEM one, polished up and weighs in at 533 grains (down from OEM 795 grs)and then made a ultra lite weight Peek hammer @ 193 grains.I then cut a flat wire hammer spring at 3-1/4 " long with a weight of 7#'s, which I can cut coils off until I get in the neighborhood of 775 fps both shots,when the pumps reach into the 10 to 15 range.Then made a .450" Dia lead rod, (sand cast) so I can cut off segmentsto increase the hammer weight, as needed for the Ultra LW hammerand made several washers to fit the spring guide to increase the hammer spring weight,if needed.Attempting to get 2 equal shots (as possible) from any of the pumps over 10or all that retain air after the first shot. Imho, testing with the spring hammer weight first is the easiest option, all I have to do is remove 3 bolts to get to the hammer spring etc.I hate removing the action because of the blasted M3 bevel headed tiny screw that holdsthe front half secure? I have just about finished the mockup for adding a SSG, which will make life/tuning a lot easierfor any of these type of rifles.I have an idea that the hammer bouncing off the valve base/tube crimped area is causingthese quirky reading at certain pump levels, so we shall see, I hope. ThanksYour thoughts or suggestions..........Don