Demento

I had the same problem the first time I used the retainer plate. It must of taken me 45 minutes to get it installed. You might want to check for any burrs on the plate where it goes over the axis pins, just in case. I found it helpful to file a shallow bevel on the end of the safety where it goes into the left side of the receiver. That's what I did and it made it easier to insert the safety into the receiver. Good luck. Believe me, I feel your pain, LOL! BTW, mine is an S-12, but it looks like the fitment is the same.

Thanks RED333. I'm not sure how the lips got curved down but that would certainly explain why the bolt can't push shells forward.

These are photos of the magazine loaded and unloaded. More pics - unloaded mag.

Thanks RED333, I think I have the posting of pictures figured out. I couldn't find any rough spots or burrs on the magazine tabs. I don't know if it helps, but here is a picture of the bolt, shell and magazine. I appreciate any ideas! The lug on the bolt face hits at 9 o'clock on the base of the shell, about half way between the rim and primer (major pucker factor).

I have a 1999 S12 that I have only shot a few times (2 3/4 in Federal #6) but never had a problem. I recently started my conversion with a Tapco T6, Fcg, BHO and Axis retaining plate - all from CSS. I did some minor polish work on the receiver rails, bolt carrier and bolt. Two days ago I decided to try out hand cycling to see if it still functioned as it once did - it didn't. I used 2 3/4 inch Wincester Super X slugs and Remington 00 buck. Since then I have searched this forum, the web and youtube to find an answer. I am using the factory 5 round magazines. When i hand cycle or drop the