I have cycled the action on my Winchester Defender several hundred times with no shells in the gun. I think the first night I had it I held the action release and cycled the action at least 200 times, while watching TV. I have no idea why my wife went off to another room...
On top of that I have just crossed the 18,000 shell mark with assorted ammunition... and still no reloader yet.
I posted several threads about this as HS/LD (I use my real name now after someone asked whether HS/LD meant something to do with HomoSexuality and Latent Deviancy...)
It seems to me that the design is reliable, just that perhaps you picked up a bad one that has a specific problem. Remember people put these firearms together and people make mistakes.
I would completely break it down, trigger group and all, and check for anything that looks broken or bent, or more likely was incorrectly pieced together.
I would do what you say. Get it fixed and then see if you can beat me to the 20,000 round mark without any further mechanical problems.
In 18,000 shells mine still has had only a couple of non-operator induced failures (that’s a 0.01% failure rate) and coincidentally it did feed another shell onto the lift while a shell was still in the chamber, I have my suspicions that this too may have been operator induced as the shell was the last inserted into the mag and I may have not inserted it all the way. It is wise to make sure you push that shell half an inch past the tube lip. The other one, the extractor ripped a piece out of the the rim of a shell. An ammunition issue who knows? I will still count it as a failure for the sake of the arguement.
So FWIW I am a fanatic when it comes to reliability. I carry an H&K that has NEVER had a failure to feed or fire 0.00% failures. I have an FN FAL L1A1 that has fed and fired at least 100,000 7.62s without a hiccup 0.00% I expect the same from my shotgun and with the Winchester I feel I have as close as I can get to it with the 0.01%
Regards,
Cameron