My Remington model 7400 semiautomatic 308 rifle will fire one round. then extract eject and chamber next round however the trigger is not reseting so it will not fire the second round

Is it possible that your ejector does not have enough tension or material to grab the spent casing to pull out? The casing expands in the chamber after it is fired and will be difficult for the ejector to dispense the empty casing if it is not able to get under rim. Try this out first and see where it leads you. Cheers and good shooting!

See if this forum feed will help:
http://forums.gunboards.com/showthread.php?298052-remington-7400-308-jamming-fix

Probably the ejector itself, or the extractor.

You weren't too specific.

Is the round staying in the chamber?
Coming part way out?
Coming all the way out, just not ejecting out the action?
Coming out, and staying in full contact with bolt face?
Coming out, dropping away from bolt face?
Etc..........

Couple of things could be happening:
dirty firing pin channel
Bad lot of ammunition.
Light/broken hammer spring.

Clean it thoroughly and shoot it again.

Eject or extract it from the chamber. There are two different systems.

Go to Numrich/Gunparts Corp., they have a parts schematic for your Remington 582.

It takes about 250 rounds to break in a gun. Try some hotter ammo and see if the problem disappears, if so, call Marlin and ask them for their solution if you want to keep using Federal, you might want to try some Remington standard velocity target, it is very accurate in most guns.
I would shoot it for at least 500 rounds and clean it from powder debris in chamber and receiver bolt and trigger group and try it again, however don't hesitate to get a hold of Marlin, they are nice folks.

Hi there,
First, listing a gun problem in the Toys section is kinda confusing. 36 grain, so i assume .22 caliber. Is this by chance a P22 or P99?

Next: ejecting vs extracting. Extracting is the act of the spent brass being pulled from the chamber as the slide moves backwards. Ejecting is when the spent casing is thrown from the gun, leaving a clear path for the next round to slide into the chamber.

The most common problems with .22 pistols is that they are dirty. Hands down, and I know this from working at a range. Strip that gun down, and clean the hell out of it. If you're not comfortable, have a gunsmith do it for you. Next, check for burrs (rough edges of metal) on the extractor. Also check for burrs or rough spots on the feeding ramp into the chamber.

If everything looks good, try different ammo. I've seen all different types of ammo fired through different weapons systems, some worked and some didn't. Wolf ammo hates American rifles, its just true. .22 LR is cheap, buy a few boxes of different brands, and see what your weapon likes to fire.

If this is still giving you problems, let me know, and i'll walk you through it step by step

its the wrong mag in it, its locking your bolt back,

I think you will find that you have a Remington 7600 pump action rifle chambered in a Winchester calibre round. There may be something inscribed on the barrel with Winchester on it. The numbers with the word Winchester EG: .308 will denote the calibre. Just like a .38 revolver will have .38S&W on it regardless who manufactures it. The name S&W indicates the original patentee of the round. So your Remington 7600 is chambered for a Winchester patent round. The number with it such as 308 or 243 will tell you what ammo it takes.