Those of you that have tried using a pin probe for your .25 Impact MK11. What kind of results did you get? Was there much increase in FPS over the stock probe that may or may not have been modified to match the transfer port ? Thank you.
Pin probe for .25 cal. Impact MK11
- Thread starter hotair
- Start date
Lets talk Huma dual port and precisely matching pellet probe only, in .25 cal? No I have not noticed a valuable increase in fps swapping between the elongated probe and pin probe. If you want to get a noticeable difference need to dig deeper with $$ and parts and the pin probe will be just one of the elements in the upgrade.
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Thanks guys for your input. It looks like at least for the time being the stock probe is going to stay. I was able to increase velocity 60fps by changing two springs, porting the transfer port and matching the probe and adding a stop. Stock the gun would only shoot 920fps at 120bars using the JSB 34's. Now it will shoot them 980fps and the NSA slugs 953fps with the reg. at 130bars. That will due for now.
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