Dear Friends,
Now both my RAW HM1000 .25 and .22 are upgraded.
Upgrades include;
1. Anti hammer bounce device
2. High efficiency and high power peek valve
3. Regulator design a bit changed
4. Regulator sealing seat in made of peek
5. External plenum installed
6. Reg pressure 145 bars
7. In .25 the hammer weight reduced by 10 gram
8. Various transfer ports of various sizes
9. O ring based sealing in breach and pellet probe
10. O rings installed in inner stem of pellet probe
11. Custom moderators
12. A bit harder valve return spring
13. BSA old stock barrels installed
Results
.25 34 grain jsb at min hst 880fps and at max hst 970 fps
.22 25 grain jsb redesigned pellets at min hst 865fps and at max hst 1000fps.
Consistency is very good.
Bucketboy helped me a lot in valve design, anti hammer bounce device and improving the regulator design.
If any further useful modifications can be done, please advise.
Regards,
Umair Bhaur