I am having the exact same problem! I have a brand new Ethos, 1 month old. The first time I went to the range for some skeet and trap shooting I put 5 boxes (125 rounds) through it, and I had one Failure to Feed (FTF) problem. The second time I shot another 5 boxes (125 rounds) and I had 3 FTF issues. The fourth and fifth times I again shout 4~5 boxes (100~125 rounds) each time and now I am experiencing about a 20% failure rate to feed. The first shell ejects fine, but when feeding the second shell it will get stuck before being pushed in by the bolt action.
I have used all kinds of ammo:
Remington Premier STS Target Loads, 2 3/4", 1 1/8 shot oz, # 8 shot size
Remington Premier STS Target Loads, 2 3/4", 1 1/8 shot oz, # 9 shot size
Remington Gun Club Target Loads, 2 3/4", 1 1/8 shot oz, # 8 shot size
Winchester Target Load, 2 3/4", 1 1/8 shot oz, # 8 shot size
Federal Premium Top Gun Target, 2 3/4", 1 1/8 shot oz, # 8 shot size
The shotshell loadings varied between 2 3/4 ~ 3 dram equivalent shot.
I will also say that I am an engineer and I am anal about cleaning my gun, lubricating and servicing it. I cleaned the gun before the first time I used it, and every time after I have returned from the gun range.
Needless to say, I am EXTREMELY disappointed and frustrated by this issue!!! I would not have expected this from a brand new mid~top of the line "Benelli" (Ethos). I thought Benelli's were supposed to be reliable and superior to most other manufacturers.
Any help or information would be appreciated, please!
Thanks -- Cameron