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Jim Gillilan's Custom 1322 Carbine

Jim Gillilan's Custom 1322 Carbine w/Custom Stock

Here's one I'm especially proud of and is modded all over, doing 12fpe at 15 pumps.
Stock is Teak from Thailand and super light weight 1322 Carbine!

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The biggest factor in making ME not linearly proportional to barrel length...

August 12 2011 at 3:16 PM

Steve in NC  (Login pneuguy)
Crosman Forum Member
from IP address 74.162.158.79


Response to As you say, only the barrel length info:

...is the fact that pressure usually drops rapidly as the charge expands behind the pellet.

So the energy contributed by the last inch of bore is generally much less than the energy contributed by the first inch, simply because the pressure - and therefore the push - behind the pellet is higher near the breech than near the muzzle.

Steve


    
This message has been edited by pneuguy from IP address 74.162.158.79 on Aug 12, 2011 3:18 PM


 
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