New results are in out of correct tin of pellet after shims 16.2 JSB 766 767 766. Avg 765 SD. 1.0 765 765 increase of approx 50fps but cut SD IN HALF with unweighed pellets --
Chrono results --177 using new Magneto chrono 5 shot average -- gun tethered and valve set at 1500 into the gun from factory 13.4 Gr --avg 803 fps SD of 4.3 16.2gr avg 718fps SD OF 2.4 after adding .010 of shims to regulater 13.4 gr -avg 848fps SD of 3.1 16.2 gr -avg 846fps SD of 1.4 these...
I don't have borelite for 177 - do pellet guns have a smooth chamber before rifling or just chamber into the rifling ?? Thinking rebarrel to heavier barrel --will chrono with pressure changes soon and post -- thanks
Thanks for reply about the size of hole -- did the valve - took 2 of the .005 shims to get it slightly over 1250 -- any harm going over just a little -- or maybe to 1300 -- thanks for your help --
Thanks for the videos -- am doing the valve now -- what size did you bore out the air hole to the barrel ?? Did the video actually tell ? i am doing 177 - thinking of pulling the shroud and skinny barrel and replace with Lothar and real air stripper ?? what size hole please ?? Mine showed 1200...
How does barrel come out ? Is it pressed ? Threaded ? Pinned ?? wanting new crown -- what needs to be done -- 73 model and thinking shorten a little and clean up -- thanks for replies -- thx