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Dag Evert's "American Classic"

As mentioned on the forum, heres a picture I took some time back, with natural winter daylight.
A 2100, and a 1377, both guns have been recrowned, and had their trigger parts shimmed for play,
contact surfaces stoned, and trigger springs somewhat reduced within safe limits.
The 2100 has had its barrel shimmed with tape to remove play.
Both guns give great accuracy for the money if they are given good pellets!
The combination of pellets and guns in the picture represents something close to my boyhood dreams:-)
-- Dag Evert

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Transfer port restrictions

June 25 2012 at 7:31 PM
robert  (Login gubb33ps)
Crosman Forum Member
from IP address 68.105.50.68

Restrictive transfer port.

OK..here is the data. Same gun, same valve, same everything EXCEPT striker springs were swapped. As striker energy increased, the sweet spot pressure also increased.

But the shot count stayed the same.

Spring #1
135 90BAR
10 shots from 620 590fps = 605fps averqage / 11 foot pounds

Spring #2
145- 100BAR
10 shots from 650 620fps = 645fps average / 12.5 foot pounds

Spring #3
165 110BAR
10 shots from 675- 645fps = 660fps.average / 13 foot pounds

SO, If I want a 12 foot pound gun....would running at the higer pressure level and restgricting the transfer port (so that the energy level was at 12 foot pounds) increase the shot count...or not?

 
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