Email to Mesa after todays range session.
Well, worked on my 930 at the range today and jacked it up. I had the stock recoil spring at the point where it would cycle 00Buck or Slugs like a race horse, but wasn't content. I went to clipping coils in an attempt to find the happy spot where it would cycle everything from 3 dram loads on up. Well, when you cut the spring down to where a 3 dram load will cycle the action, there isn't enough OOMPAH left in return tension to eject and feed right. Needless to say, I found this out the HARD way. At any rate, I've got an email in to Mossberg trying to get a new stock recoil spring sent out. I'm back down to a single shot until I get Mesa's proprietary spring. Hoping that it works! By shortening the recoil tube, we may be limited to shooting higher power loads. I have a complete stack of 12 gauge from 3" slugs to 3 dram field loads ready to go as soon as I get the spring. Praying that everything will cycle. With the stock spring, the compression rate etc. just wont cycle everything after being cut down. Just FYI, 5 coils (1/2") were cut to allow the action to fully cycle without the spring going into full compression. Another 8 cut coils (3/4") allowed the gun to cycle 00Buck and Slugs flawlessly. Today, I cut 1 more coil and it almost cycled 3 dram field loads. I should have stopped there, but having that thirst for advancement, I cut 1 more coil which caused ejection and feeding problems for all rounds. Live and learn.