Update on my custom P15 it is now tuned and settling down... Incredible range of power with hammer spring, I can go from JSB 15.89 915 FPS through to Monsters 25.39 at 880fps for 44 ft lbs, still a lot of tuning to do but most accurate by dialing hammer spring out a bit and shooting JSB 18.13's at 920 fps for around 34 ft lbs...Still have some custom springs, regulator, custom valve poppets and a host of other things to play with...
JSB 18.13'S 50 Yards...
I am sure with some more tuning and playing I can find the sweet spot for each pellet...
Here is my collection all customized either partially or completely...
P15 Predator 177 - CZ Barrel, Gamo Urban, shortened barrel custom shroud, and P15 Predator Custom Semi Bullpup LW Barrel
JSB 18.13'S 50 Yards...
I am sure with some more tuning and playing I can find the sweet spot for each pellet...
Here is my collection all customized either partially or completely...
P15 Predator 177 - CZ Barrel, Gamo Urban, shortened barrel custom shroud, and P15 Predator Custom Semi Bullpup LW Barrel
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