Benelli M1 Super90 ... Load 9 shells?

[BlackBuzzard]

Given the sadistic tendancies of some stage designers to go to extreme round counts, I was wondering how to get 7+1+1 into my benelli?

Gun was purchased while the AWB was in effect......regular stock, with mag tube extension.

How does one load this gun in 7+1+1 = 9 shells? Is there a modification I need to make to the bolt carrier? If so I would love to see a procedure.



BlackBuzzard

 

[waterhouse]

It depends on what your bolt carrier assembly looks like.

There might be a notch near the rear of the bolt carrier. If so, that notch will lift the "shell lifter" (I can't think of the correct term) and prevent "ghost loading."

I have heard you can will the notch with JB weld or something similar, but I've never tried it, since mine came from the factory with no notch.

 

[Zak Smith]

You can either fill in the notch, or make its corners more like 45 degrees with a dremel. I recommend just sending it to someone who knows how to do the mod, like Benny Hill (Triangle Shooting Sports in TX).

 

[Quiet]

You could always try and find a Benelli M-1 Super 90 Practical. They came with a factory 9+1 capacity. It was designed/marketed for IPSC competitions.

 

[Zak Smith]

I seem to remember the M1S90 "Practical" had a ported barrel, which made it less "practical" for 3-Gun/IPSC/USPSA because ports are only allowed in Open class.

Still, you could do 9+1+1 with one under the carrier.

-z

 

[BlackBuzzard]

I have searched the web high and low and this is the best description I have found to make my M1S90 go 7+1+1.

On the bottom side of the bolt group, there is a small groove which is cut into the bottom of the carriage. it runs cross the assembly, NOT lengthways.

Filling this groove, until it is flush with the rest of the surrounding flat surface, with a strong epoxy like JB Weld will allow for a fourth shell to be loaded by the following means:
Load two rounds into the magazine.
Open the bolt and place one shell into the chamber. Keeping the bolt opened, place another shell onto the shell carrier. The carrier is the fork-shaped piece which lifts the shell from the magazine to the bolt during the autoloading sequence.
While holding the "floating" shell down, close the bolt, allowing the bolt to slide over the floated shell.Make sure the bolt is fully closed.
When the weapon is fired, the second shell will be loaded into the chamber from the flaoted position, rather than from the magazine. Shells 3 and 4 will be loaded normally.​

In first below image of my bolt carrier it is turned upside down, and there are two grooves. I think the groove that needs to be JBWeld-filled is the bottom, horizontal, rounded groove on right side of bottom of bolt carrier. Is this correct?




Other misc image of same parts........






BlackBuzzard

 

[Zak Smith]

Looks right.

It is recommended to make the edges of the groove angled, instead of using JB Weld. The latter can fall off and cause malfunctions.

-z

 

[BlackBuzzard]

Anyone care to provide a photo of the angled-edge groove modification?

By angled edges do you mean chamfer the edges that run left right, where they meet the flat surface of the bolt carrier? Or do you mean the left and right half radius' on respective side edges?



BlackBuzzard

 

[Zak Smith]

I don't have a photo. Of what you said, the former. You want to prevent "catching" on the cut-out as it slides forward and backward.