damage from extractor

[wyowinchester]

I have been having some issues with closing the bolt on loaded ammo. Locking the bolt down is very hard on some and normal on others. Case length and neck dia. are very normal between the two. I found some claw marks the head of some cases. Some worse than others. Other ideas on why the bolt locking is that hard?? Ruger, M77, heavy.

 

[huntsman22]

Since it is a claw style extractor, and much wider than the marks on your brass, are you sure it is the extractor? Feeding from the mag, or trying to single feed it?

 

[wyowinchester]

Done the single feed. Still hard to fully close. Fully cleaned the chamber, thought some carbon might be in it. Some do it and some don't. All hand loads.

 

[huntsman22]

The ruger is probably CRF. Not designed to single feed. Some will, most won't. See if it does it, feeding from the mag......

 

[birddog 68]

Have the shoulder been bumped back?

 

[Reelamin]

Base not sized fully.

 

[wyowinchester]

Haven't bumped the shoulders. Full sized every case. Thinking of annealing some of each and seeing if that makes any difference. All fired 3 times

 

[huntsman22]

If they were FL resized, it is a single feeding problem…..

 

[wyowinchester]

The ruger is probably CRF. Not designed to single feed. Some will, most won't. See if it does it, feeding from the mag......

Doesn't make any difference single or mag feed. both ways have done it.

 

[wyowinchester]

Hornady reloading dies

 

[066wally]

Are you feeding from the magazine or just dropping the cartridge into the action? Actions with a claw extractor are meant to be fed from the magazine.

 

[wyowinchester]

Thanks for your help. Sometimes the case head drops below the bolt and you have to help it. I'll do some more experiments with it

 

[Taylorbok]

That's a mauser style action, it's not intended to be single fed.

 

[slikmrc]

Looking at your case a couple things to look at would be the bevel on the extractor and how much spring tension the extractor has. The first test I do is while holding the bolt, slide a case on to the bolt face like feeding from the mag box. You should feel the extractor snap on to the case, not a hard snap but should be some tension. Then I do a wiggle test for lack of a better word. bolt should hold the case. I do use a dummy round for this test. A properly fit extractor will hold the case as well as allow the bolt to close on round single feed. Finding a gunsmith who can tune a CRF action is the hard part these days.