M1/M2 receiver wear + shell loading hesitation

[accuracy]

Hi, I'm reposting a question I also posted on shotgunworld. 

I noticed that after ghost loaded a shell onto the carrier of my M1 (with or without shells in magazine). Then tried to rack the bolt to load the ghost round by hand, the bolt would often hang up on the back , unable to lift the shell up and chamber the round. However, as soon as I either applied a little forward pressure on bolt, lift up on carrier, or press magazine latch. it will easily chamber the round. Round doesn't have to be ghost loaded to do this, as If i release a shell from magazine via lever, and try to rack the bolt, it does the same thing.

I completely stripped and cleaned trigger group, cleaned/reoiled recoil spring, cleaned and reoiled bolt and inside receiver.

Now it is a lot better, but will still want to hang up trying to load the shell on the lifter with nothing in the magazine tube. If there are rounds in the magazine, then it seems to load normally.

I read that this issue could sometimes stem from a worn magazine latch spring (have one on the way).

However Looking inside the receiver I noticed that it has a lot of wear, opposite side to magazine latch. it is slightly gouged/galled. It kind of looks like the rim of the shell is hanging up on the gouge in the receiver. Is there a reason why my gun has so much wear here or just normal for high round count benelli's.

Mods:
Nordic +5 ext and spring.
TTI Reduced power recoil spring
(I haven't fired the gun in several months however, last time I went out i went through about 100 rounds (hi brass, 00buck, light game loads) no malfunctions, and didn't notice shells hanging up). 

 

 

I ordered the following:
Mag latch spring
Carrier spring.

Any one else have wear marks like mine? Or perhaps My nordic magazine spring is too long/powerful and causing shells to be sent onto my lifter too hard, then gouging the receiver.

I will note that I am not original owner of gun, and when I got it , i had non-stop FTE issues with any/all loads. Replaced pistol grip with conventional stock, and put in the reduced power spring, and began to cycle everything.

 

Thanks all.

Edited February 10, 2021 by accuracy

[remarkable]

My recommendations:

Discontinue Ghost loading

Replace Carrier Latch

Remove 5 shot extension, reinstall OEM magazine tube and OEM Spring

Why: Some/most extension builders are not revising the Magazine Springs to meet requirements to not only function with the product line but this in consideration with the Gun Manufacturers Carrier Latch Design and strength.  Most Carrier Latches I replace, many per year have one thing in common, extended magazine tubes.  

I build M4 with  magazine extensions as well using the correct parts and calibrated magazine springs.  Stranger Danger and Steve Rose are great resources on this forum how to do this correctly.

 

[StrangerDanger]

I avoid ghost loading myself. I’ve encountered too many issues to trust it to function when it matters. 

[accuracy]

The springs I ordered didn't help. 

Guess i will drop the $50 on a new latch and see what I come up with, thanks for the advice. 

[tberkhouse]

I have a 20 gauge Benelli M1 Super 90. I find it difficult to push shells into the magazine. Is there a modification to the shell holder spring that can be made?

[StreetSweeper56]

7 hours ago, tberkhouse said:

I have a 20 gauge Benelli M1 Super 90. I find it difficult to push shells into the magazine. Is there a modification to the shell holder spring that can be made?

You can cut rings from the mag spring. I would be very cautious not to remove too much.

[bambihunter]

Another thing it could be is the recoil spring or the tube where it resides is gunked or rusted up. I've seen several that had odd feeding issues that I couldn't seem to work out and decided to look there. In these cases they had a lot of what was dry material at one time. It looked like grass and corn shuck particles, then oiled. One was severely rusted. On that one I had to replace the entire tube and spring. Full disclosure, I don't work on guns for a living, but I hunt with a lot of different guys and when they start talking about selling their "P.O.S. of a gun" because it jams all the time, I try to buy it from them. I work on it and then I take it back out next time I hunt with them and show them it works. MANY of the times they bought it back. I make a little bit on it, not really enough for the time I spend, but I help keep these guys shooting Benelli's which I am happy to do.