Benelli M2 issues - Page 1

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Posted: 10/15/2016 10:05:19 PM EDT

So my benelli m2 will sometimes not release the next round onto the lift plate. It has a +25% power spring, mostly shooting 4 buck, 2's and 7.5s, does not do it on one specific shell nor all the time. Just wondering what could be causing it?

Thanks,

Posted: 10/15/2016 11:15:15 PM EDT

[#1]

Quoted:
So my benelli m2 will sometimes not release the next round onto the lift plate. It has a +25% power spring, mostly shooting 4 buck, 2's and 7.5s, does not do it on one specific shell nor all the time. Just wondering what could be causing it?

Thanks,

View Quote

How many rounds do you have through it? Is it good and broken in?

Doc

Posted: 10/16/2016 2:16:36 PM EDT

[#2]

Thousands, it is good and broken in.

Thanks,
Boswell

Posted: 10/16/2016 2:45:58 PM EDT

[#3]

Time for a detail strip.

I would examine the carrier latch, pins and spring.

Take the magazine follower out and make sure it isn't dented or binds in the magazine tube.

There are some know-how Benelli guys ] on this board- keep at it until it is running 100% as it should!

Posted: 10/16/2016 7:21:19 PM EDT

[#4]

Is the gun and its parts all factory- or has it been “tuned”.

Does it have an extended magazine tube?

Posted: 10/16/2016 9:16:45 PM EDT

[#5]

Quote History

Quoted:
Is the gun and its parts all factory- or has it been “tuned”.

Does it have an extended magazine tube?

View Quote

All factory parts, and yes it has a mag extensions.
I don't think its the mag extension as it has done it with full mag, 2 rnds single round.
I have noticed that some times it doesn't lock back when empty. So I am wondering if its short stroking?

Thanks,
Boswell

Posted: 10/16/2016 9:35:29 PM EDT

[#6]

Quote History

Quoted:
Time for a detail strip.

I would examine the carrier latch, pins and spring.

Take the magazine follower out and make sure it isn't dented or binds in the magazine tube.

There are some know-how Benelli guys <translation: forgotten more about Benellis than I will ever know

] on this board- keep at it until it is running 100% as it should!

View Quote

He's on the right track for this issue:

Also: Make sure the mag tube spring is 14”-16” longer than the mag tube + extension and the junction of the factory tube and extension is not allowing the follower or spring to hang up.

Clean out the mag tube all the way down to the receiver. There is a junction on the factory tube about 3” in front of the reliever. Make sure the spring and/or follower is not hanging there.

Does the shell latch have a significant amount of movement around its pivot pin? I have replaced a few pins that had worn to the point that the shell latch could move 1/16” in/out in the slot in the side of the receiver (and that is too much)

Posted: 10/17/2016 2:23:31 PM EDT

[#7]

Quote History

Quoted:

All factory parts, and yes it has a mag extensions.
I don't think its the mag extension as it has done it with full mag, 2 rnds single round.
I have noticed that some times it doesn't lock back when empty. So I am wondering if its short stroking?

Thanks,
Boswell

View Quote View All Quotes

View All Quotes

Quote History

Quoted:

Quoted:
Is the gun and its parts all factory- or has it been “tuned”.

Does it have an extended magazine tube?

All factory parts, and yes it has a mag extensions.
I don't think its the mag extension as it has done it with full mag, 2 rnds single round.
I have noticed that some times it doesn't lock back when empty. So I am wondering if its short stroking?

Thanks,
Boswell

Did you replace any of the fire control group parts in order to comply with 922(r) or ?

Posted: 10/17/2016 2:34:32 PM EDT

[#8]

I bought a Benelli M2 from Taran Tactical with this similar issue. The symptoms are similar to yours in that a round would be thrown on the lifter but not chambered or a round would be partially out of the mag tube but not completely on the lifter. Mag spring changed, buffer tube spring changed, bolt carrier shimmed... same issue.
So yesterday, when I looked at it more closely by inserting shells one by one into the mag tube, I felt quite a bit of resistance before the shells would 'click' into the mag tube. It looked like the shell stop was protruding too far inwards, towards the mag tube so it could be catching and retarding the shells as they're thrown onto the lifter.
So we took the shell catch out and bent it slightly towards the receiver. It is now running fine so knock on wood, that was the issue.
Maybe it helps you.

Posted: 10/17/2016 3:35:41 PM EDT

[#9]

Quote History

Did you replace any of the fire control group parts in order to comply with 922(r) or ?

View Quote

Gun is a 922(R) exempt

I will check the shell catch and do another full detail strip and inspection.

Thanks,

Posted: 10/18/2016 7:17:26 AM EDT

[#10]

Quote History

Quoted:
I bought a Benelli M2 from Taran Tactical with this similar issue. The symptoms are similar to yours in that a round would be thrown on the lifter but not chambered or a round would be partially out of the mag tube but not completely on the lifter. Mag spring changed, buffer tube spring changed, bolt carrier shimmed... same issue.
So yesterday, when I looked at it more closely by inserting shells one by one into the mag tube, I felt quite a bit of resistance before the shells would 'click' into the mag tube. It looked like the shell stop was protruding too far inwards, towards the mag tube so it could be catching and retarding the shells as they're thrown onto the lifter.
So we took the shell catch out and bent it slightly towards the receiver. It is now running fine so knock on wood, that was the issue.
Maybe it helps you.

View Quote

Bolt carrier shimmed? Got a picture or details of that?

Thanks

Posted: 10/18/2016 10:45:50 AM EDT

[#11]

Quote History

Quoted:

Bolt carrier shimmed? Got a picture or details of that?

Thanks

View Quote View All Quotes

View All Quotes

Quote History

Quoted:

Quoted:
I bought a Benelli M2 from Taran Tactical with this similar issue. The symptoms are similar to yours in that a round would be thrown on the lifter but not chambered or a round would be partially out of the mag tube but not completely on the lifter. Mag spring changed, buffer tube spring changed, bolt carrier shimmed... same issue.
So yesterday, when I looked at it more closely by inserting shells one by one into the mag tube, I felt quite a bit of resistance before the shells would 'click' into the mag tube. It looked like the shell stop was protruding too far inwards, towards the mag tube so it could be catching and retarding the shells as they're thrown onto the lifter.
So we took the shell catch out and bent it slightly towards the receiver. It is now running fine so knock on wood, that was the issue.
Maybe it helps you.

Bolt carrier shimmed? Got a picture or details of that?

Thanks

It was during troubleshooting that the TTI gunsmith was looking at the bolt carrier and thought it was rubbing up against the trigger group. So, he took out a file and started shimming down the bottom of the bolt carrier. It could have been an issue but it wasn't the issue.

Posted: 10/19/2016 8:10:33 AM EDT

[#12]

It is your carrier latch. Replace the spring, latch, and pin. It is a somewhat common problem. I called Benelli and they sent me a brand new one for free. It took forever. But, it worked.

http://forums.benelliusa.com/archive/index.php/t-20660.html

Posted: 10/21/2016 8:00:31 PM EDT

[#13]

Echo a lot of guncat's recommendations.

Clean the magazine tube well. Don't put oil inside of it. You want to run it dry. Oil just collects debris. I'd get a Wolff magazine spring.

How does the breech latch look? I've seen worn ones cause shell release issues.

Any sign or feel of binding when retracting the bolt? I've encountered damaged receivers and deformed bolt carriers that cause binding.

How's the trigger pack look? It might be worth tearing down and cleaning extensively to see if it has any affect. Respringing it would not hurt.

A new main spring would not hurt.

Any signs of wear or damage to the shell stop?

Posted: 10/21/2016 8:11:50 PM EDT

[#14]

Quote History

Quoted:
It is your carrier latch. Replace the spring, latch, and pin. It is a somewhat common problem. I called Benelli and they sent me a brand new one for free. It took forever. But, it worked.

http://forums.benelliusa.com/archive/index.php/t-20660.html

View Quote

Thanks for the link! That's an old thread too.
I'll send this around as it looks like even the folks at TTI didn't know this.

Posted: 10/24/2016 11:20:29 PM EDT

[#15]

Quote History

Quoted:

Did you replace any of the fire control group parts in order to comply with 922(r) or ?

View Quote View All Quotes

View All Quotes

Quote History

Quoted:

Quoted:
Is the gun and its parts all factory- or has it been “tuned”.

Does it have an extended magazine tube?

All factory parts, and yes it has a mag extensions.
I don't think its the mag extension as it has done it with full mag, 2 rnds single round.
I have noticed that some times it doesn't lock back when empty. So I am wondering if its short stroking?

Thanks,
Boswell

Did you replace any of the fire control group parts in order to comply with 922(r) or ?

You took names when the teacher was out of the room, didn't you.

Posted: 10/29/2016 7:18:21 PM EDT

[#16]

So question,
I picked up a new carrier latch, spring and pin. I also picked up a Arredondo Bolt release bar, my question is installing it, do I need to tap the carrier latch? The directions say "use #43 drill (.089)", so do all I need to do is drill a hole, no threading needed? Or drill the tap, but what tap do I need?

Thanks,

Posted: 10/29/2016 8:38:09 PM EDT

[#17]

Quote History

Quoted:
So question,
I picked up a new carrier latch, spring and pin. I also picked up a Arredondo Bolt release bar, my question is installing it, do I need to tap the carrier latch? The directions say "use #43 drill (.089)", so do all I need to do is drill a hole, no threading needed? Or drill the tap, but what tap do I need?

Thanks,

View Quote

Drill the hole, then tap the hole 4-40 for the Arredondo release bar's screw.

Posted: 11/1/2016 4:03:24 PM EDT

[#18]

Hey fellas -

A question for other Benelli M2 guys..

I noticed another issue cropping up with my TTI M2. Every 50 rounds or so, I get a shell hung up on the top/right side of the chamber.
I polished that side a bit with the dremel and some sandpaper but it's still happening.
One thing I noticed is that when the shell is thrown up from the lifter, I can see that the shell isn't going directly level into the chamber. It's angled slightly high. If I ride the bolt forward, I can feel the shell hitting the top side of the chamber before going into battery.
Does yours do this too?

[ARCHIVED THREAD] - Benelli M2 issues

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