I had this same issue with my new R51, it was almost impossible to rack on a full mag. and if I did get it back it would jam on the first round because it had been pressed into a nose down position in the mag. just by pulling the slide back, the round gets stuck there and causes a jam. I shot about 500 rds. and nothing got better so I took a mag. apart and examined it, I compared it to a few other mags from different guns I have, I decided the spring was too heavy so I cut 2 coils off 1 mag. spring and put it back together, now it loads better and the gun can now be racked on a full mag. and will chamber the first round. I have shot a few hundred rds. like this and no problems so far. So does anyone make weaker springs for the R51?

Thanks, waiting on your reply from Remington, I think I'll just shoot mine for awhile as it's a good shooter and send it in later if there is a factory fix.

Quote from: DanOh on September 17, 2016, 09:39:09 AM
It is mentioned that some R51s are stamped with "Charlotte", aren't they all?  Mine too is stamped with the same, what other location is stamped on the new R51s?  Thanks, and there is no way mine will chamber a round with one finger either.

I was under the impression these GEN 2 guns are all made in Huntsville,Al, but mine is a SN 0014___ and says Charlotte,NC on it. And my slide can be pulled back some with one finger but not more than halfway.

Quote from: bonorden on August 25, 2016, 06:16:28 AM
Let me start by saying that I really like the feel and accuracy of the R51.  However, I have an issue with my R51 that I haven't seen posted.

When I have a full magazine (all 7 rounds) and insert the magazine while the slide is pulled back, the magazine inserts properly.  I can release the slide and the first bullet gets chambered.  Perfect!

However, if my slide is closed and I insert the magazine (with all 7 rounds), it goes in, but has a little different feel to it.  But it is still properly secured.  The issue is that under this circumstance, I cannot put the slide all the way back...maybe it goes back 1/2 to 3/4 ways.  If I drop the magazine out, the bullet (or now I'm using snap caps) will have a little mark on the top side of the bullet.  I do not have this problem if there are only 6 bullets in the magazine.  It does this for both magazines.

I've field stripped it many times to see if Pederson device is in the proper spot or if there is anything between it and the slide or if there is any signs of wear.  I don't see any issue.

Is this a problem or just normal operation?

I have the exact same issue, only way I can shoot it with a full mag. is to lock the slide back, insert mag. and trip the release, doing it that way it runs flawlessly. Did Remington tell you how long it would take them to fix it?

I just learned about the R51 about a week ago and now I have one!!!
Will post a question shortly.