Bolt face stripping brass

[Tim Singleton]

I have a new DS that is stripping brass
I polished a little with 1000 grit. It got a little better. Am I missing something?
or just needs a bit more polishing

 

[Tim Singleton]

@DaveTooley
help?

 

[Walt Krafft]

Ejector looks proud. Remove the ejector and see if it continues.

 

[wvlongshot]

I'll go ahead and ask. Is it just with the alpha brass? Or lapua as well?

 

[338 Mollett]

Looks like a burr there also by the ejector hole .

 

[Tim Singleton]

Looks like a burr there also by the ejector hole .

Yea I thought so too. i polished it and it got some better

Scott
it did it with Norma too

 

[243winxb]

 

[Tim Singleton]

After I polished it a bit. It got some better
I wanted to get after the ejector hole a little more but didnt

 

[Tim Singleton]

View attachment 1590764

Yep I got after that some.
would it hurt to chamfer that a bit?

 

[Coyotefurharvester]

Is that primer residue common on competition rifles? I don't see it on my hunting rifles.

 

[243winxb]

No chamfer

 

[WSnyder]

Too hot and or soft brass. Looks like the brass is extruding into the extractor slot as well as the ejector. The burr on the ejector hole may make it look worse but sure looks like pressure to me.

 

[Sniperhandle]

That primer does not look like pressure though.

 

[Acyr]

I've had that swipe on brass that sticks for a second to the chamber walls after firing. Similar to a clicker but not as bad.

 

[Tim Singleton]

I've had that swipe on brass that sticks for a second to the chamber walls after firing. Similar to a clicker but not as bad.

wondered if I had something like this going on.
I can pull the barrel off stick it back in the lathe and hit it with some Emory paper
I do that just a little as a practice anyway. So this chamber was touched a bit with Emory paper on a wooden dowel already

 

[Acyr]

wondered if I had something like this going on.
I can pull the barrel off stick it back in the lathe and hit it with some Emory paper
I do that just a little as a practice anyway. So this chamber was touched a bit with Emory paper on a wooden dowel already

Wouldn't hurt to touch it up again. I use 600 grit when polishing after chambering. Hard to tell from your pictures but it does look like it's happening on extraction. Right bolt?

 

[Bill K]

That looks more like some shaved off brass sticking there, rather than a burr. A little more polish and maybe even a little less pressure on that load.

 

[Tim Singleton]

Wouldn't hurt to touch it up again. I use 600 grit when polishing after chambering. Hard to tell from your pictures but it does look like it's happening on extraction. Right bolt?

Yes right bolt

 

[jimmymac]

If it does not do it with Lapua, I would be questioning the brass. I have shot some Alpha in the high node without issues. I will put three new pieces of my Alpha in the mail for you today. sorry for the delay.

 

[Fuj]

Bolt face looks rougher then a country road. After knocking off
the burrs, also lightly polish the full face a bit. And my experience
with just one lot of Alpha brass, I found it to be softer then the
Norma brass I use.