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Scot Laughlin's Custom All Weather 2260

2260 with short crosman receiver atop a mini riser made from aluminum tube. Barrel is a 2200 soda straw
tensioned inside a titanium golf club shaft. Three screw mod to the trigger, bulk co2, SSP 250 rear cocking
striker assembly. Factory stock, reshaped, bedliner finish and stick on cheek piece. The idea was a weather
resistant light hunter for rainy days.
I've got a Cothran stainless receiver and gas tube waiting for me to get back to this one.

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That was one of the arguments proposed....

June 14 2012 at 8:58 AM
rsterne  (Login rsterne)
from IP address 66.244.241.34


Response to I'm not convinced his air was room temperature

and compressing the small amount of air between the valve seat and the back of the pellet would indeed raise it's temperature.... However, the expansion of the MUCH larger volume of air in the tank which takes place to propel the pellet would surely LOWER the temperature of the total amount of air passing down the bore....

Since the velocity limit is based on the average speed of air molecules at a given temperature, I would think the "limit" would be lower than 1649 fps, not higher.... This experiment remains an anomaly, but one that seriously challenges the idea, IMO....

Perhaps the Siegel (IIRC ?) limit of 5 times the speed of sound is the one that really applies?....

Bob

 
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