The (new) Crosman Forum, your first and last stop for all things Crosman


120_2001r.jpg

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.

 Return to Index  

A couple of comments, just for grins.

June 14 2012 at 9:50 AM

Steve in NC  (Login pneuguy)
Troll, Banned User or Assorted Delinquent
from IP address 98.69.198.150


Response to That was one of the arguments proposed....

1. The molecular velocity stat' most likely to be relevant is, not the average velocity, but the RMS velocity, since this is the one that corresponds to average kinetic energy.

2. An air temperature of 40C = 104F produces an RMS velocity of 519m/s = 1703fps, and air reservoirs are often this warm (or even far warmer) after a recent fill.

http://hyperphysics.phy-astr.gsu.edu/hbase/kinetic/kintem.html

3. There are many ways to inadvertently perturb the calibration of the readings from a Shootin' Chrony chronograph by 6% (or more), and 1750/1650 = 1.06.

[linked image]

Steve


    
This message has been edited by pneuguy from IP address 98.69.198.150 on Jun 14, 2012 9:54 AM


 
 Respond to this message   
Responses

Crosman Corporation 1-800-724-7486

This forum is not affiliated with the Crosman Corporation in any way// Information presented in this forum is intended for informational purposes only; use at your own risk//Posts made to this forum are solely the opinion of the individual member