Posted on 01/30/2013 4:57:43 PM PST by West Texas Chuck
Maybe I’m tired, but I read it a few times and thought it was having difficulty pulling a fresh round from the tube.
The upper ejector is similar to the feeding mechanism down below.
Both are slipped into notches, and any debris in that notch will misalign the spring.
ping
There is a couple of normall reasons for short stroking a pump shotgun. First is operator error not moving the fore end slide back far enough.
This can cause several problems, incomplete extraction, incomplete ejection. Complete ejection but not far enough back to activate the shell latches thus not allowing the shells to release from the mag tube.
The 2nd trouble that can happen and is gun related is a weak magazine spring. During recoil the shells in the mag tube are forced forward by the recoil if spring is weak the shell isn’t returned to the proper position. Then the shell stops keeps the shell in the mag.
One sees this mostly with really good pump gunners they work the action so fast that they are finshed before the spring can do its job. It is made worse by the heavier recoil of magnum rounds. The cure is a longer recoil spring
More then one firearm has left the factory with a mechanical defect as with any production item it can happen. Just a fact of life most are very good a few have problems.
I first got an NRA Instructor card back in 1968. I reloaded multiple calibers and gauges for over 40 years. It is not dangerous to shoot slugs in a full choke barrel. I am not talking about add on adjustable chokes, just slug bored barrels.
Given the wide variety of choke systems out and the many different types of slugs that can be used. We both are right or wrong depending on the shotgun and type of slug
Shooting over size very hard slugs like all copper sabot slugs through full or extra full chokes could very well do some barrel damage.
One could easily cause damage to screw in choke tubed barrels mashing ,peening the threads together so you could not effectively remove the choke.
The same things happens when one puts steel of other very hard shot through very tight barrels. On a fixed choke gun one could peen the barrel out causing other problems.
Shooting slugs that are the same size or under sized of the barrel or choke would not cause these problems.
Shooting standard soft lead foster type slugs that are normally under size but they vari from manufacture to manufacture. Would most likely not cause the above problems.
So shooting some type of slugs through some full choke barrels will not cause any problems.
Shooting other types through some full or extra full choke barrels can and could cause some problems.
Again it all depends on the ID of the choke and OD of the slug. Small ID and large OD would not be recommended.
A slugs OD that is the same or smaller the the chokes ID would avoid the problems.
I hope this helps clear things up we both have lots of experience with shotguns and shooting them.
Mossberg wants it sent in. Though I am wondering if limp-wristing the thing may be the cause.
I think I’ll try and put 5 more through it this weekend and see what happens, now that I have been educated on a few things. You know, it is easy to think a pump gun is idiot-proof, but like my old daddy used to tell me “son, you could mess up a steel ball bearing.” So we did it one time just to prove him right.
Thanx everybody for all your comments and advice, y’all play nice now ;)
My guess? The guy you shoot inside your house will not know whether you shot him with a 3” buckshot magnum or a 2 3/4” quail load.
Well, the 590a1 is back from Maverick arms, with a repair order showing the following.
#7557P - STOP, CARTRIDGE PARKERIZED
#6706P - BOLT, ASM PHOSPHATE
#1765P - ELEVATOR, ASM PARKERIZED
No charge. Hope to try it out this weekend. Thanx to all who told me to send it in, I think I did the right thing.
Let us know how it works.
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