PP750 in .22 came with a rough crown job, no lands scoring so only a touch up to the factory crown, clean and polish 100 strokes wilt felt and bore polish.Trigger takes some work to polish sear, round and polish very sharp tip on "first stage" set screw, polish tip on "second stage" set screw an then adjust for a very short first stage with satisfying second stage break.Wes provided an USA brass valve seat with identical dimensions except for the exit ports.Canadian: 1.80mmUSA: 3.44mmHammer spring came clipped, but has good tension and range.Machined taper into hammer charge bolt head and matching undercut to hammer collar, reduces binding/drag.
Thane,You opened up the air path more on your .177, is there a reason for not going as much on the .22?Great work btw, that 35 @ 17fpe+ is sweet..
Just the stock baffles now. I have a Huma LDC waiting for an adapter. Noise really picks up once exceeding 600 FPS.Just put a few JSB Monster Redesign 25.39 gr made 650 FPS/ 24FPE.
For about how many shots, you think?
Quote from: mrbulk on September 09, 2020, 04:11:00 PMFor about how many shots, you think?Same set point as green string in chart, 18 shots on regulator with heavier pellet. Slower so it spends more time in barrel picking up a bit more energy.Need to shoot some 25 yards groups at this power level, see if I can hold the groupings.
I just got a direct fit LDC off Ebay, put it on after taking a couple shots with the Rocker LDC , then the Ebay one, too close to tell if Rocker is quieter, but I will say it may be slightly But I need the rocker on another pistol LOL The Ebay is skinnier but about an inch longer than the Rocker one I have. https://www.ebay.com/itm/SPA-750-ldc/174398475091?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649