CFX dryfire...it happened

[CharlieDaTuna]

When you fire the CFX with the breech open, you are not dry firing the gun. Actually the conditions are just the opposite and can be more damaging than dry firing. There is a very strong possibility of excessive diesel back pressure and perhaps even detonation depending on the condition of the seal and at what point in the stroke it detonates. It can cause very early spring fatigue if nothing else and if excessive, collapse or even break the spring. Not a common occurrence but it does happen. Plus....there is a possibility of damaging (blowing out) the outer seal on the rotary breech.

Hey Jeff...don't do dat no mo...lol...  

[shadow]

Should we start up a class for CFX AAA.  :p Ed

[davee1]

I'm tellin ya.....Hi my name is Dave and I've dryfired....there's still a wrinkle in the chair I was sittin in from the clenchup.

Gamo is still saying that their rifles can be dry fired...

http://www.gamo.com/?ID=26#link6

but on the USA website....


Q.:    Can the GAMO rifles be dry fired?
A.:    No, spring piston air rifles should not be dry fired. Gamo engineers have done extensive testing to determine the damage caused by dry firing and as a result have increased the strength and durability in the power plant to better handle harsh punishment. Dry firing can still damage the system and is not recommended.

[leftcoast1]

the seal just can't take the abuse. The piston will punch through the seal. The pellet slows the piston down so it does not crash into the end of the chamber. Gamo would be smart to remove or reword that statement.

PeakChick - 9/8/2007  11:22 PM

I have accidentally dry fired both my CFXs a couple of times. It is disconcerting, but neither one seems the worse for wear.

FWIW, Gamo says that you can dryfire all of their airguns without damaging them at all.
Apparently they dryfired one over a thousand times, took it apart to examine for signs of damage, and found none.
I still wouldn't make a habit of it, though.