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Comments on Gilman's Review

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Gilman Saturday, November 13th, 2004
Period of
Product Use:
Only tested
Paintball
Experience:
3 years
Similar
Products Used:
Several different bolts for the Piranha, stock, venturi, green bolt.
Marker Setup: Piranha G3 BL VF, with high flow valve & valve pin, NW slider for flush cocking, Shocktech volume chamber, PMI regulator.
Strengths: Very smooth finish
Very good fit in tube
Cut out for detent
PRICE
Weaknesses: None noted
Review: My initial impression was that it is a well made bolt. I liked how the connecting pin between the bolt and hammer fit so the pin would not rub to top of the upper tube. Could not see light around the bolt when installed so it seems to seal the chamber well. Very light as compared to the 3 bolts listed above. As it is non-metallic there will be no wear to your upper tube. Works for either flush or non-flush cocking.

When I tested it I found a big drop in velocity as well as efficiency. My gun usually runs 280 fps with this setup; lowest tension spring, black, from a 32 degrees spider spring kit , & and the green PMI bolt that uses bottle o-rings. When I installed the Tigershark my velocity dropped by 30 fps. In order to get back to 280 fps I had to go to the next higher tension spring and increase the output of my regulator by by 1/4 more of it's normal output setting, sorry no guage so I can't give the exact pressure.

Conclusion: Nicely made bolt better than most I've seen. Doesn' t help velocity or efficiency but I noticed no blowback. If bolt had o-rings around the inlet port it could possibly maintain or improve efficiency. The rating reflects the loss of velocity and efficiency.
Rating:
7 out of 10Last edited on Friday, December 3rd, 2004 at 6:15 pm PST
 

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