There's a 5th shot outside the pictures edges. 485 yds. 4 shots were pretty spectacular, the 5th only avg.

AmmoFort said:

<Shrugs> I don’t fucking know? It kinda stalled…? Looks good to me. Still seems juicy. Probing decent. It’s just going to go way faster than I thought? The pit temp started high as it was still coming down from the burgers I made earlier.

I’ve only done steaks, burgers, and some shrimp so far. I may just wrap it in parchment paper when it reaches 200 degrees. I keep waiting for a real stall to appear. People talk about going backwards. I saw the flat drop 0.1 for a few minutes, then it just kept going. This was Prime from Costco, and I really did a hatchet job on trimming the fat.

Again <shrugs> I don’t fucking know…
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You’ve pretty much reached around 165 on both probes, I don’t worry about temp as much as I do in getting the bark I want. When you get the bark and color you like, then wrap it and leave it alone till you get around 205, then that’s when you’re going to start probing it for tenderness, NOT TEMP. when the probe goes through the meat like it were going through warm butter, you’ve reached the tenderness you’re looking for, from there, let it rest and you’re off to the races

As far as the “through warm butter” comment, it’s a feel thing, and that’s the best way to describe it. What you’re really looking for is not to have resistance when putting your probe through the meat. And you’re probing multiple locations when you do it so you make sure the entire brisket has reached the tenderness you’re looking for want.

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:

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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