CaptDAR
Moderator
The RIF Marshall
Always count your shots and don’t miss
Posts: 4,850
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Post by CaptDAR on Jan 22, 2024 18:57:09 GMT
Welcome Geoff to our friendly replica forum. How did you find us? I also have a re barrelled M29. Started life as a 6mm smoothbore and now full rifled .177 and a reworked valve. I’d be interested in knowing what your chono results are like Reworked valve sounds interesting I somehow stumbled onto this site while surfing. Can't remember exact figures but the fps dropped by about 15-20 fps , but the power nearly doubled, as did accuracy. Any link on the reworked valve? Added and opened the vent holes. Wasn’t me who did it though.
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Post by gregothe1st on Jan 22, 2024 21:36:31 GMT
Welcome Geoff to our friendly replica forum. How did you find us? I also have a re barrelled M29. Started life as a 6mm smoothbore and now full rifled .177 and a reworked valve. I’d be interested in knowing what your chono results are like Reworked valve sounds interesting I somehow stumbled onto this site while surfing. Can't remember exact figures but the fps dropped by about 15-20 fps , but the power nearly doubled, as did accuracy. Any link on the reworked valve? Found the figures .177 2.75"...340fps 1.79ft/lbs .22 5.75"...320fps 3.2 ft lbs
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CaptDAR
Moderator
The RIF Marshall
Always count your shots and don’t miss
Posts: 4,850
Likes: 5,907
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Hi all
Jan 22, 2024 21:42:15 GMT
via mobile
Post by CaptDAR on Jan 22, 2024 21:42:15 GMT
Reworked valve sounds interesting I somehow stumbled onto this site while surfing. Can't remember exact figures but the fps dropped by about 15-20 fps , but the power nearly doubled, as did accuracy. Any link on the reworked valve? Found the figures .177 2.75"...340fps 1.79ft/lbs .22 5.75"...320fps 3.2 ft lbs Very nice result.
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CaptDAR
Moderator
The RIF Marshall
Always count your shots and don’t miss
Posts: 4,850
Likes: 5,907
|
Post by CaptDAR on Jan 22, 2024 22:03:21 GMT
Using .177 7.3g Econ II gives,
Average FPS = 340 Average FPE = 1.9
Accuracy after resetting the adjustable rear sight is excellent at 6 yards rested with pellet on pellet
Might have to consider at 22 barrel but I don’t think there are any compatible shells off the shelve.
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Post by HeadHunter on Jan 23, 2024 11:46:40 GMT
Reworked valve sounds interesting I somehow stumbled onto this site while surfing. Can't remember exact figures but the fps dropped by about 15-20 fps , but the power nearly doubled, as did accuracy. Any link on the reworked valve? Added and opened the vent holes. Wasn’t me who did it though. That was me
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Post by gregothe1st on Jan 25, 2024 13:24:19 GMT
Added and opened the vent holes. Wasn’t me who did it though. That was me Qudos to you Headhunter, thought about the valve but I've yet to dismantle the thing, I did take the side off, saw the gubbins and quickly put it back on, the Valve can wait till another day
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