I broke the bolt in very thoroughly the other day. Putting ~16-20 tanks of air through it. I had it on 12.5bps full auto. The ambient temperature was 8*F, and I was over lubing it on purpose due to the extreme process I went through.
Initially I put 4 tanks of air through the gun (4500 til it wasn't cycling fully). @ 12ms dwell, and around 110psi. Cleaned and lubed it. Then I put another 5 through it, same process.
I let the gun sit at this point for a few minutes to "warm up". Then I hooked my tank to the fill station, turned the input up to around 130psi, and shot the gun from 4500 psi til it hit 1k psi and then while still shooting filled the tank back up to 4500.. I did this until I'd put around 8 tanks through the gun (wearing gloves I could no longer tolerate holding the cold *** frame)
Funny thing is that the regulator was still recharging at the same rate, and the gun had no problems cycling consistently in this harsh cold. I also didn't have any bolt stick unless I let the gun sit for 10 minutes.
Then I cleaned the firing assembly (which looked like this)
and put a few more tanks through.
Around this time I cleaned the whole firing assembly again, and replaced all of the orings. Relubed the gun and put another ~5 tanks through it. Cleaned lubed one more time and then tested for leaks or bolt stick.. Surprisingly no bolt stick unless I left the gun aired up for over 25 minutes, and it was just one shot to clear the stiction (ABS setting on 1)
Took it to my tourney this weekend and it shot great over the chrono- paint was really inconsistent in sizing so I changed inserts a few times and then right before our first game I checked my chrono again and it wasn't cycling all the way anymore, so I set it down for the day. Hoping it's just a battery, even though I put a new battery in before doing the break-in, that was a lot of cycles.
One last thing, where can I find a replacement bolt guide bumper? I lost mine at some point, and during the crazy break-in I started to notice wear on the base of the bolt guide, so I threw a 15/90 oring on it to prevent more wear. It cycled great for the last 4 tanks or so but I'm also thinking this oring probably got in the way when I was at the chrono.