[kirkcdl]

I just got a used 1300(18"bbl,7rd mag extension),and when you fire it,it unlocks by itself and the bolt/carrier moves back about an inch,same motion as if you were chambering another shell,but it seems like the lockup lets go too easily,or maybe too soon(?).It can be held in place,but the only thing keeping the empty shell fully chambered is the forward pressure you're putting on it.I didn't try it one-handed,so I don't know how far it will move to the rear when unsupported.The lockup is fine by itself,you can try as hard as you want,but it will not unlock until you pull the trigger or push the release button.Any ideas?Hopefully it's an easy fix.Thanks in advance to anyone that knows...:D

[Spec ops Grunt]

I believe thats the speed pump feature.

[oscar]

It is suppose to do that.

[brentwal]

"Fix" it and you'll screw it up. That's the way it's supposed to be.

[kirkcdl]

Are you guys really serioius?I had a Mossberg 500 that wouldn't move to the rear until you put rearward pressure on it.Not much,but it didn't open the action on its own.If that really is the way it's supposed to work,I guess I'll just have to learn to like it...:confused:

[DougW]

The 1300 I had years ago would cycle very fast, using recoil to get the slide going. It is designed that way.

[Berek]

I have a 1300 that I love and that is normal. If you shoot it one handed, it should eject the shell, even target loads. As previously stated, it's a speed pump feature and to fix it is to break it.

This is one reason that, when I teach my classes, I explain to the students to learn about the firearm, if possible, before shooting it. Another example is some Ithica shotguns will fire immediately after cycling the action if you keep your finger pressing the trigger. You don't have to lessen the pressure on the trigger at all. Another "feature" ... some like it. Most that I have spoken to, at least...

[brentwal]

It's almost like a "semi"-semi auto. I've been told Benelli Novas do a similar thing.

[justsurvivingincalifornia]

YES, its normal, they designed at the same time they were developing Semi-autos. The engineers thought it would make it faster to cycle with a recoil asistence.

[Fred Fuller]

Believe it.

It's a feature, not a bug.

It's designed to do that, it's what Winchester calls a 'Speedpump.'

It's OK, really.

Just relax and enjoy it.

lpl/nc

[lbmii]

So on a 1300 does the bolt not fully lock? If you pull back on the pump when it is cocked will the action open?

[1911 guy]

The bolt locks up on a rotary bolt head, very similar to the AR/M-16. Recoil moves the bolt head to the rear and unlocks it.

[asknight]

Put a 50ft/lb recoiling Remington Buckhammer slug in a Remington 870 and it will complete the eject cycle for you, only you have to slide the pump forward to chamber a fresh one!

[Fred Fuller]

http://www.winchesterguns.com/prodinfo/catalog/category.asp?cat=012C
The Winchester® Model 1300 Speed Pump™ : no other pump shotgun offers the same speed and agility. Thanks to the innovative inertia-assisted pumping of its proven rotary bolt action, the Model 1300 is capable of shooting three shots in just over a half second.
====================================

-from the Winchester website, while it's still there to paste from. Bolding is mine...

lpl/nc

[Spec ops Grunt]

Just go with the flow. It will increase your cycling speed.