Looking at the end of case picture, that seems like where the copper is catching. You can see flakes of it on that edge.

This was a new box of ammo last night. Maybe the bullets were just slightly larger in this box enough to catch? I looked up 6.5CM spec and the .2645 is correct diameter for the space past that lip, and if the bullets are .2638-.2639, they shouldn't be scraping around the entire diameter like that....wonder if it was a slightly worn reamer and we are paying the price a decade later?

ETA - I cleaned and cleaned and cleaned it and it appears maybe there was a light carbon ring. I took a few more new rounds and now the marks are still there, but lighter. The force to close is still there, but lighter. In the bore scope, the black by the end of the case is significantly lighter. Maybe @Terry Cross was correct that it's a couple things - a slightly tight freebore combined with a light carbon ring...

Of course I don't recall other rifles making any mark at all when I chamber a round so maybe there is still something else going on?

Robert Vogel, former USPSA world champion arrested for child porn

JerkyFreak said:

Am I the only one that thinks it is a bit overdone?

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Are you saying that you wouldn't accept any if you were there?
You going to criticize or shut up and eat?

JerkyFreak said:

Carbon generally doesnt do that to copper. If it was a carbon ring I would expect some black particles to break off with that ammount of force.

Can you place some fotos taken with the borescope showing the neck-to-freebore transition and the lead?

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Shoulder



End of case


freebore to lands

Aussie Joe said:

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Nope….

Happy Sunday!

Amen.

PM Sent

Glowworm said:

That's AI.; AI still can'tget hands or cankles right. ...I still almost threw up though.


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Well I certainly didn’t think she posed for the photo

918v said:

Login to view embedded media

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Why you don’t trust shotgun safeties or P320s either

Kickin45 said:

Do you have go no-go gauge?

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I do not. Tried to chamber both fired and unfired cases and no issues with either, although none of them chamber as easily as they do in my Tikka

ShtrRdy said:

The Creedmoor chamber freebore diameter is spec'd at 0.2435". So, if the new bullet is 0.2435" or greater you could have interference fit.

Another possibility is the carbon ring buildup is aggravating the small-ish freebore diameter.

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Do you mean .2635?

That may be it - the new bullets (before chambering) are around .2638-.2639 in the section where the marks are showing up

slodsm said:

Do you have a modified case that you can drop a bullet in and just see where the lands engage at?

It’s nuts that it literally started from nowhere after shooting fine recently but I’d be interested to see where it touches the lands and what the CBTO measurement it compared to the factory loaded rounds.

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Yes I used my hornady oal length gauge and it was crazy short. Like 145 thousandths short of the factory round

Will sell for $2100 for the scope, $2350 as configured with the QD Spuhr. Thanks all.

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This was my last meteor. 14.2# American Wagyu for Father’s Day. Just under 13 hours to get it where I like it. Another 2 hours rest before slicing

Perspective ???.....

Camel hump .....

Not really looking for trades, but will listen what you have to offer. Send IM

Mean_Man said:

Good grief I know there's a no nude version of this thread but dang... does it have to be half a page on every page nearly?

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You probably belong somewhere more prudish