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Posted: 12/12/2013 9:03:36 PM EDT
| Picked up a barely even fired benelli m2 tactical with a tacstar 8+1? Magazine extension for 875 today. It has a choke tube in it, which has four little lines in it which must be marks to tell you what choke it is ? Anyways can I run slugs through it ? |
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You have an Improved Cylinder choke, that's a good choice for slugs, If you have the other tubes you might also experiment with Cylinder and Modified to see which gives the best accuracy, but generally IC works well.
Benelli choke tube constriction markings: Full I Improved Modified II Modified III Improved Cylinder IIII Cylinder IIIII |
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1 1/8oz loads at 1200 fps (or heavier and faster shells) should run the gun.
Have you shot an inertia action gun before? They require a little different stance, more of a solid hold, to let the action cycle. The gun needs to move under recoil then stop against your shoulder to make the bolt cycle fully. Hard to explain - but hang onto the gun tightly and you’ll see how it feels when it starts cycling properly |
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its factory and looks like all the others  Quoted:
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No pics? its factory and looks like all the others Never an excuse and with member since 02 and 15K post you should know better 
As for stove piping check make sure chamber is not cluttered up, check extractor make sure it has good tension not damaged, do you have lube on your bolt? I see this a lot people will lube the Hell out of their AR's but do not on semi shotguns just a few quick things to check. |
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halfway through the range session I lubed the bolt, on the channel on the inside of the receiver where it rides on. as for how to hold the rifle, Im 6'1" 220, I was using a very firm stance.... the only thing I wondered, was the fact that its less than 20 degrees today, I had a carhartt jacket, sweat shirt, undershirt, and tshirt on. maybe that caused the "limp wrist" type of problem like you see with pistol stove pipes. so, I text the old owner of it, he says he never shot the gun, but his friend who owns two benellis says to run 100 rounds through it to "break it in" |
| Ok I'm a bit pissed right now. I completely stripped the gun, even cleaned out the recoil spring and spring tube, cleaned and lubed everything. The gun was jamming every 2-3 shots for the first 35 rounds, the last five rounds it stove piped every single round. This was with Remington and winchester buckshot 2 3/4" shells. Wtf do I need to do? The extractor looks fine. |
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Is the inertia spring in place? (the large, thick spring inside the bolt)
Also try this: Shoot the gun without having your thumb on your strong hand wrapped around the pistol grip. Lay the thumb along side your index finger or place it on top of the stock like you would a conventional stock. By doing so you are removing the rigid support structure that limits the gun's movement during recoil. Sounds peculiar but on some recoil action, pistol gripped guns I can make the gun jam on command by creating this rigid triangular support. |
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I'll try that and I may also try some really light loads too. I assume that spring is in the bolt ? If I push the bolt face backwards it seems to return forward.
I read that one guy sent his m2 in and benelli cut a little material off of the bolt to allow the extractor to sit tighter to the bolt |
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I'll try that and I may also try some really light loads too. I assume that spring is in the bolt ? If I push the bolt face backwards it seems to return forward. I read that one guy sent his m2 in and benelli cut a little material off of the bolt to allow the extractor to sit tighter to the bolt The inertia spring is #8 on this schematic. Its a very strong spring and you can barley compress it by hand. The firing pin spring causes locking bolt (locking head #18) to move forward as you as noticing. Try Winchester AA, Remington Nitro or Federal Target or Top Gun with 1 1/8 oz at 1200 fps or faster. If the gun will not cycle these something is wrong. |
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The inertia spring is #8 on this schematic. Its a very strong spring and you can barley compress it by hand. The firing pin spring causes locking bolt (locking head #18) to move forward as you as noticing. Try Winchester AA, Remington Nitro or Federal Target or Top Gun with 1 1/8 oz at 1200 fps or faster. If the gun will not cycle these something is wrong. Quoted:
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I'll try that and I may also try some really light loads too. I assume that spring is in the bolt ? If I push the bolt face backwards it seems to return forward. I read that one guy sent his m2 in and benelli cut a little material off of the bolt to allow the extractor to sit tighter to the bolt The inertia spring is #8 on this schematic. Its a very strong spring and you can barley compress it by hand. The firing pin spring causes locking bolt (locking head #18) to move forward as you as noticing. Try Winchester AA, Remington Nitro or Federal Target or Top Gun with 1 1/8 oz at 1200 fps or faster. If the gun will not cycle these something is wrong. thanks for your help with the bolt / spring / part number 8, I tore down the bolt, that spring is in there, I did not see anything out of place or odd. I will go to the range again shortly, and try those lighter loads, and holding the gun not so tight to my shoulder |
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Ive fully stripped, cleaned and oiled it. inspected everything and cant tell any problems with my untrained eye. Ive shot FIVE different types of ammo, 2-3/4" birdshot, two brands of buck shot, 2 brands of 1 ounce slugs one being 2-3/4" and one brand being 3" remington.
Ive shot it holding it in every way imaginable. the only thing I havent done, is shoot it with the tac-star magazine tube extension that came with it, but has never been installed. that could have ruled out the factory magazine spring if it ran properly after that. looks like I have to call Benelli tomorrow, I hate the thought of shipping a gun in case it gets "lost" |
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My son's M1S90 would jam (short stroke) fairly consistently with light loads.... until..... he replaced the recoil pad with a LimbSaver. It is soft enough that it lets the gun move properly under recoil. He's 6' 220 and muscular. His grip was tight enough it wasn't letting the gun move enough and the softer recoil pad has resulted in zero malfs' since installed.
I installed a similar (soft) recoil pad (Hi-Viz X-Coil) on mine and have likewise had zero malfs. You might try this.... fairly cheap and certainly doesn't hurt. Both mfgs. make pre-fit pads for the Benellis. |
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OK ! !!!!!!!!!!!!!!!!!!!!!!!!!
I may have just realized something that might put me on the right path ! if you chamber a shell, and pull the charging handle, no matter how many times you pull the shell just rides back with the bolt and doesnt kick outwards ! I didnt take note of this at the range cause I was firing the rounds, not manually emptying the gun I took a video if anyone wants to see for a better explanation, does that get us any closer to solving this ???? |
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Should look something like this: http://rs181.pbsrc.com/albums/x290/AndyUKphotos/EjectorSN.jpg~320x480 Yeah so... that's a picture of the inside of the receiver with the bolt back, right ? Yeah....... those parts are missing. Wtf !?!?! |
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Yeah so... that's a picture of the inside of the receiver with the bolt back, right ? Yeah....... those parts are missing. Wtf !?!?! Quoted:
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Should look something like this: http://rs181.pbsrc.com/albums/x290/AndyUKphotos/EjectorSN.jpg~320x480 Yeah so... that's a picture of the inside of the receiver with the bolt back, right ? Yeah....... those parts are missing. Wtf !?!?! Easy fix, parts are less than $30. |
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Should look something like this: http://rs181.pbsrc.com/albums/x290/AndyUKphotos/EjectorSN.jpg~320x480 Yeah so... that's a picture of the inside of the receiver with the bolt back, right ? Yeah....... those parts are missing. Wtf !?!?! Incorrect Picture, That shows a Supernova. |
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Incorrect Picture, That shows a Supernova. Quoted:
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Should look something like this: http://rs181.pbsrc.com/albums/x290/AndyUKphotos/EjectorSN.jpg~320x480 Yeah so... that's a picture of the inside of the receiver with the bolt back, right ? Yeah....... those parts are missing. Wtf !?!?! Incorrect Picture, That shows a Supernova. Yep, but it is similar on an M2 I believe. Could be wrong though, probably am. |
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Is the ejector housing still in place (it is riveted to the barrel extension)?
The complete assembly is made up of parts 84-88 The housing, rivet and ejector are visible in this picture: 
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Glad you got your Benelli fixed. Personally, I wouldn't even paid for the install as I don't see how someone could have removed those parts. It had to be a factory error. Either way, glad it's fixed. Now go shoot the piss out of it. well, I wasnt at a Benelli shop, so I understand the stores need to pay for their gunsmiths time, $40 to have it done while I wait was pretty fair I thought. to be honest, Im happy to have this resolved. Minus fuel and wasted ammo, ive got $915 into this gun total, plus it came with a tac-star magazine extension. the shotgun alone on most stores shelves are $1300 + tax |
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