Whats happening to this bolt?

Sloped Roof Specialist

Sloped Roof Specialist

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Any ideas what would lead to this on a buddy’s Rem 700 in .243??

Said the bolt was feeling sticky on rotation, but extracted fine. No blow by that he noted. Was working up ladder rounds, but was a problem on the lightest loads too.

Haven’t seen the brass yet.

Ideas? Repairable, or time for a new bolt?
 

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I'm not super familiar with Remingtons. I shoot with a guy pretty regularly, but all his have the extractor blown out of them. They're just like a spring clip that's riveted inside the rim. Have a Google. If it's not loose it's probably OK. Guntech probably woulda flagged if something looked off.

Neck sizing doesn't set the shoulder back, so if he's got a few loads on those cases it's likely that they've grown a bit and are getting tight.

But.. I worked overnight and am beat, so I am not the best guy to be making judgements on a bolt over the internet. If he's concerned he should take it to a gunsmith.
 
PGW Steve and Guntech have it imo.
That bolt face looks pretty normal to me.
Symptoms sound like incorrect sizing.

Suggest to your buddy that he FL size every time and set the die to bump it .002
 
Beeron said:
PGW Steve and Guntech have it imo.
That bolt face looks pretty normal to me.
Symptoms sound like incorrect sizing.

Suggest to your buddy that he FL size every time and set the die to bump it .002
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I’m gonna do exactly that… thank you… and I’m the reloader… so that’s on me… guess I should be getting a comparator kit sooner than later.
 
'Boo said:
I think he is worried about the sliver of metal displaced on the inside of the bolt head and the circumferential crack that appears to be starting. .
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I see an extractor that isn't tight flush with the internal circumferance of the bolt face recess. Mine aren't that way. It's right tight against the internal surface. That one looks like it has a gap. Do you have a picture of the other side of the lugs? as on an unrelated topic, that is the surface that sees load.cgn bolt face.JPG
 
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Grizzlypeg said:
I see an extractor that isn't tight flush with the internal circumferance of the bolt face recess. Mine aren't that way. It's right tight against the internal surface. That one looks like it has a gap. Do you have a picture of the other side of the lugs? as on an unrelated topic, that is the surface that sees load.View attachment 923638
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I don’t, but I can try and get one. Already passed message to him to ensure the lugs are lubed.
 
set your sizing die up resize a case chamber it if there is resistant a then turn the die down ever so slightly then chamber again when you get to the spot where you feel ever so slight pressure on closing you are done
also take the bolt apart and lube the internal threads of the bolt body and the external threads of the firing pin assembly
 
Bigbubba said:
I’ve never used a comparator
I just do it as Struff55 describes it
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Oh thank god... can I hide behind you while the hate comes at me?? LOL!! I'm just kidding.

I do know clearly see the important of a shoulder comparator for shoulder bumps and CBTO measurements now, and I will be ordering one someday soon. Either area 419 or Short Action Customs.

SRS
 
Sloped Roof Specialist said:
Oh thank god... can I hide behind you while the hate comes at me?? LOL!! I'm just kidding.

I do know clearly see the important of a shoulder comparator for shoulder bumps and CBTO measurements now, and I will be ordering one someday soon. Either area 419 or Short Action Customs.

SRS
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It all depends on how critical making your brass last is to you, and potentially some accuracy, or not. Lots of reloading has been done simply adjusting the die until you have sized it enough to chamber.
 
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