[jhm]

sounds like you could have a dirty chamber I have found this to be the cause for a lot of them, try giving it a real good cleaning with a good quality brass brush the chamber that is and clean it out and see if that helps, has for me in the past. JIM

 

[jhm]

742 extractor

Silenthunter I dont own a 742 or acces to one here at the house but I am not aware of more than one place for the extractor to go. JIM

 

[gunnut69]

Model 742 Extractor problem

Silenthunter-- You never mentioned if there were any marks on the cases left in the chamber.. Is the extractor damaging the rim? If the problem is a dirty or rusted chamber there should be some damage to the rim of the case as the extractor is pulled over it or thru it. There is only 1 correct way to install an extractor in a 742, unfortunately it is not that easy to do.. To test the extractor, tear down the rifle and look at the bolt from the front. The extactor is a little sliver of steel inside the bolt face between 9-11 o'clock. By the way the ejector has no bearing on extraction at all, it's task is to get rid of the empty pulled from the chamber by the extractor! To test, insert an empty hull in the bolt face. You may have to insert the left (outside of bolt)edge of case head first, then move the case mouth toward parallel with the bolt. It should be very difficult to pull the case straight forward out of the bolt face. If it does not test out take the bolt back to the smith that installed it and give him the chance to fix his problem.. These extractors are tiny little springs and if flexed too much duriong installation they will not grab the case rim hard enough to remove the fired case from the chamber.. When this happens how difficult is it to remove the fired case from the chamber?? It should really come out with very little difficulty. If it's difficult to remove it may be a pitted chamber is causing the problem.. There would be scuff marks on the sifes of the case.. I guess we just need more info.,, I'll check in again tomorrow...the gunnut69

 

[Rick Teal]

Model 742 Extractor problem

silenthunter:

That sounds similar to a problem I used to have with my first 742. However, my gun was ripping the rims off the case stuck in the chamber. I found that switching to a medium burn-rate powder and the aggressive use of my chamber brush solved the problem (at least until I wore the gun out).

Rick

 

[gunnut69]

Model 742 Extractor problem

Remington does not have the older riveted extractors. they are however available from Brownells.. their catalog number 55, page 9, price a bit over $15. Does the extractor need replacing? Is it the rivet in type??

 

[gunnut69]

Model 742 Extractor problem

Is the brass marked up in any way. bright spots on the sides of the case?? Try the extractor test as described above. May be a poorly installed extractor.

 

[gunnut69]

Model 742 Extractor problem

Sorry for the delay.. Sounds as if the extractor is simply not getting a good bite on the case.. If there is not an excess of force required to remove the case from the chamber I would guess the extractor hasn't enough spring tension to extract cases. Since this is a riveted extractor and you've had it replaced I would return it to the smith and explain the problem. He should fix his error..

 

[gunnut69]

Model 742 Extractor problem

Improperly lubed 740-742 rifles do wear excessively.. The wear is in the bolt cam slot. It is caused by the use in that area of a lube that cannot handle the pressure generated by the cam pins and their impact on the cam surface. It causes the bolt head to be allowed to over rotate and cut notches in the inside of the receiver just below the carrier slide grooves. the symtoms usually consist of the rifle jamming and locking in the open position after firing. No reasonable way to fix them at this time that I'm aware of.. The extractor in the 742 is a sliver of spring steel. If improperly installed it won't work correctly.. Does the extractor remove 'unfired' rounds from the chamber? If it does perhaps a chamber polish would help, but I would definitely take the rifle back to the smith who worked on it anbd complain.. He obviously didn't test fire the rifle before returning it... If he won't work on it you might try poliching the chamber a bit yourself.. No guarantee it'll work but it's easy, cheap and has a good chance of working, especially if the rifle will extract unfired rounds from the chamber.

 

[silenthunter]

Model 742 Extractor problem

The rifle does not jamming or lock up in anyway. Also the extractor does not remove unfired rounds from the chamber. It's like there is no extractor at all.

 

[gunnut69]

Model 742 Extractor problem

If the extractor is unable to remove unfired rounds from the chamber by all means take it back the the smith and have him fix HIS error. The 742's cause a lot of problems but the extractors can be made to work.. Not removing an unfired round from the chamber is inexcusably shoddy worksmanship on the smiths part. The replacement extractors from Brownells come with 2 rivets as did the replacements from Remington for many years. That was because they were and are such a pain in the bvtt to install.... most get installed multiple times before they're right... Still there is no excuse for sending home a rifle that won't even cycle ammo.. Please take it back and tell the guy to try again, he didn't get it right the first time.. from the gunnut69

 

[silenthunter]

Model 742 Extractor problem

Thanks gunnut69
I do wish we had a gunsmith in this area but we do not. The one that did this calls himself one and has a sign that says this in front of his building but as you can see he is not a gunsmith. This isn't the first incident with him that I have had but what can you do? He's the ONLY one in this area. As many times as I have heard that someone took their gun to him and get it back only to find that it was not fixed I don't really see why he's still in business. On one occasion he took parts out of one customers gun to fix another. No instead of taking it back to him I think I will try to find a GUN SMITH to work on my guns.

Thanks again for all the help

PS; If there's anyone out there that want to start a gunsmithing business that is sure to be a hit with all the customers you would want then come to the area where Ky, Tn, and Va come together and start getting the word out. You would be covered up.