February 12, 2011, 11:21 PM
Hey yall. I was out shooting skeet today with my Mossberg 500 and enountered a slight problem with the gun that I never have before. I ran
approxiamately 50 rnds through it, and I noticed upon firing the slide came back upon recoil by itself (I'm assuming because the action is so smooth), and as the forearm came back, it would not release another shell from the mag tube. I would then lock the slide forward on an empty chamber, only to find out that I had not chambered a round. I did notice as long as I kept my hand on the forend, that the weapon seemed to run fine. Is there something wrong with my Mossberg or is it normal?
February 13, 2011, 12:25 AM
Its normal, you should/can use it to your advantage. When it starts to come back, keep pulling it all the way back and then slide it forward. You can reload faster by doing this, the gun is basically helping you reload itself. Mine does the same thing. Its normal with alot of pump shotguns.
PS-The reason it isn't reloading is because you as short stroking it. in other words, you aren't pulling the slide all the way back. Just make sure you pull it all the way back.
If you don't want it to do this, pull the forearm back and into you shoulder, this will lock it tight and it shouldn't open.
February 13, 2011, 01:17 PM
If you consider the various functions of the firing sequence of a typical pump action shotgun you'll understand what is happening:
Set disconnector, unlock action
Release round from magazine
Advance slide, lift/position round
Lock action, release disconnector (activates the trigger)
Drop hammer at full trigger pull
Repeat the cycle.
What happens when you short stroke the action (it doesn't take much) is you by-pass some, or all, of the functions between unlocking the action and re-locking the action. With the action locked, the only way to release it is with the action unlock button or drop the hammer; but, since the hammer is already down (short stroking didn't fully cock it) that option isn't available.
As the rifler mentioned, how you grip the fore-end is a significant factor in the gun's operation. A improper grip can contribute to cycling problems, like you've experienced, and increase the felt recoil (kick) in your shoulder and cheek. At times like this, it's easy to say, just follow the recommendations in the owner's manual. With the M-500 the manual recommends: With the firearm pointed in a safe direction and held in the proper firing position, move the safety button fully forward to its “OFF” (FIRE) position. Pulling the trigger through its full travel to the rear will cause the firearm to fire. Ensure muzzle is pointed in a safe direction before placing finger on trigger. They cover the safety aspects of firing; but, they don't give you a clue about what is the proper firing position. The Remington 870 manual is worse, it doesn't even mention a proper firing position.
You mentioned the problem occurred while shooting some Skeet. Proper Skeet shooting techniques will almost guarantee that you won't short stroke your pump gun. In Skeet (and the other clay sports) an important aspect of breaking targets is a smooth follow-thought. After pulling the trigger keep your head on the stock and keep a smooth swing, seeing your lead, until you see the target break. Some better shooters owe their success to an exaggerated follow-thought. The pump shooter can follow-thought on single targets as well as any other shooter. Many pumpers don't retard the action until they've dismounted the gun and have their hand over the port to catch the ejected hull.
With doubles, newer shooters often lose their concentration and immediately think about the second target as they are pulling the trigger on the first one. A poor, or nonexistent, follow-thought has caused the loss of many first targets in doubles. It's even worse for pump shooters. They are often trying to cycle the action when they should be smoothly following-thought on their first target. What happens is they not only frequently miss their first target, they jamb the action in the process. Follow-thought on that first target! After you see it break, then reverse your gun and cycle the action. Until then, keep a firm grip on the fore-end. With enough practice it will become second nature. My Skeet mentor, an aficionado in doubles, has a saying: You have all the time in the world, but don't take it.
Some shooters advocate maintaining a slight rearward pressure on the fore-end when shooting a pump gun. They argue this will facilitate a faster reloading time. It may work for some shooters and not for other; but, in either case, simple physics says it will contribute to the gun's kick. In Skeet shooting, don't think about a fast reloading cycle until after you've followed-through on your target. I recommend maintaining a firm grip on the fore-end with a slight forward pressure. This will reduce kick (a fraction) and keep the action closed while following-through. YMMV
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