CTRob65

Update: I went to the range again yesterday, but left the XM193 home. Instead I brought Prvi Partisan M193 and Winchester Q3131A. I also grabbed a Pmag, C Products mag and the factory mag. I fired off a couple factory mags loaded with both brands of ammo. No problems. I don't have any calipers to check the shells, but it looks like the MR1 doesn't like Lake City brass. I still need to confirm that statement later. It was then time to grab the Pmag. I loaded up 3 rounds and fired them with no problems (other than not being able to drop the mag). I then went to ten rounds and then thirty with not one misfeed. I don't know why I was getting them when I was hand cycling. After firing off a couple full Pmags, I decided to try the C Products magazine again. That lasted for one round. The bolt slid over the first round just as it had done so many times before. My AR loves the C products magazines, but Benelli apparently doesn't like the followers. I then swapped back to the Pmag and proceeded to have a barrel smoking fun time for a couple more magazines. I think I'm really going to enjoy the MR1 On the way home I stopped by the local fun store and grabbed an aluminum Brownell's magazine with a MagPul follower. Once home I hand cycled some rounds in the new magazine and everything went well. I'm going to pick up a couple magPul followers for the C Products magazines and see how they do in the Benelli. I thought I had read that there wasn't too much of a difference between the followers, but the MR1 would disagree. Next trip to the range will be trying out more ammo. I'm very interested in seeing how the MR1 does with 75 grain.

I had a nice reply typed out yesterday before the low post problem happened, but I lost it in the edits and time and patience was too short to try it again When I was cycling by hand yesterday I did try a revision M P-mag and I had the same problem as what the pictures show. I also tried a different C Products magazine with black follower (the original had an orange follower) with the same results. As a side note, all the non-factory magazines that I tried supposedly have anti-tilt followers and all work fine in my AR15. I forgot to add that while at the range yesterday, after I had the feed problems, I took the same C Products magazines and proceeded to blast several hundred rounds through my AR15 without any problems. After I cleaned the MR1 last night and put it away I got to thinking about the possibility of assembling the bolt wrong. The design allows the chrome portion of the bolt to be assembled two different ways and there's no mention or any diagrams in the manual. I went and took the rifle out of the safe and checked out the bolt position. It was the same as what I photographed above. I disassembled the MR1, spun the bolt around 180 degrees and reassembled. This configuration was clearly not right as there were multiple problems stripping off rounds from the various magazines. So much for an easy fix. Hopefully this afternoon I'll have time to check out different rounds. I have a fairly wide selection of 5.56 FMJ and I'll do a side-by-side comparison of the cartridges as well as dry cycling them.

pics from factory magazine misfeed along with bullet from same misfeed

pics from factory magazine failure to feed

pics from C Products magazine pt2

pics from C Products magazine

pics coming soon ... I hope

post 5 but it's too short so here

post 4 but it's too short so here

post 3 but it's too short so here

Thank you for the welcome and the reply agm65ccip I have pics from cycling by hand, but I've spent the last 45 minutes trying to find a way to post them without any luck. I can't even post broken links or my email address. My email should be in my profile if you want me to send them.

I just picked up a new Benelli MR1 (serial #BC0029--)and took it to the range for the first time today. I love how it feels and shoots, but I was having a reoccurring problem with feeding. I started with the factory magazine and Federal XM193 FMJ. I went through several full magazines without any problems. I then switched to a C Products 30 round AR15 magazine using the same ammo. The failure to feed presented itself with the bolt not completely catching the in bound round. The end result was the round diagonal in the chamber (top/bottom) with the bolt stopping on top of the round. Locking the bolt back and dropping the mag cleared the jam fine. This happened on the second or third round. I tried it again with the same ammo with the same results. I had another C Products magazine and tried it again with the same results. I then switched over to Prvi Partisan M193 FMJ using the same C Products mags with the same results. The most rounds I could fire was 10 before the failure occurred. It was time to try the factory magazine again using the Prvi and there were no problems. There were, however, problems using the factory magazine and the Federal XM193 FMJ this time. So at this point it looks like the MR1 does not like Federal ammunition and C Products mil spec magazines. Both of which I find hard to believe. As I mentioned above, this is a brand new MR1. I tore it down, cleaned it well and lubricated it. I couldn't find anything what-so-ever on how much lubrication I should use so I went a little heavy, but not wet by any means. Could the failure to feed be the result of too much lubrication or should I be looking elsewhere for the cure?