ULUL Stainless/Portless 6x45 16" AR15 Barrel Group Buy NOW CLOSED

[KyleR1985]

I got a call back from Stu.

The tone changed quite a bit from the first conversation. Standby

 

[KyleR1985]

FWIW, PT&G's current drawing of their 6x45 reamer is yours, not something with larger dimensions. Don't know if they made something different for Satern or if there was some other issue with the chambering process if that's the issue.

https://www.pacifictoolandgauge.com/6-x-45mm-6x223-Remington-SAAMI-Chamber-Reamer_p_114481.html

Yes. That’s correct.

Turns out my ignorance and our busted first attempt at a stub job on the handi may have helped figure out the issue

 

[PistolPete]

Hey all, just heard from Stu at Satern:

Good afternoon Peter, I just got off the phone with Kyle. He brought me some information today and I showed the boss, it turns out there has been a revision on the 6x45 print with Saami that we were unaware of. So we have been running a chamber reamer that was made to the original print. Thanks to Kyle, he sent me a print of the reamer he bought and had a barrel fixed with. I'm holding on to the remaining barrels to see if we can fix them with an Alpha reamer when we get it. I can assure you we will take care of this and you all won't be left out there flapping in the wind. If you want to reach out to your crew and let them know, that would be great!Looking forward to having this resolved and everybody walking away happy.

Thanks, Kyle!

 

[Jesseb]

Hey all, just heard from Stu at Satern:

Good afternoon Peter, I just got off the phone with Kyle. He brought me some information today and I showed the boss, it turns out there has been a revision on the 6x45 print with Saami that we were unaware of. So we have been running a chamber reamer that was made to the original print. Thanks to Kyle, he sent me a print of the reamer he bought and had a barrel fixed with. I'm holding on to the remaining barrels to see if we can fix them with an Alpha reamer when we get it. I can assure you we will take care of this and you all won't be left out there flapping in the wind. If you want to reach out to your crew and let them know, that would be great!Looking forward to having this resolved and everybody walking away happy.

Thanks, Kyle!

Wow, pleasantly surprised! Hope a new reamer fixes it. Unfortunately I just finished loading up more rounds to go give it another go with the load posted earlier. 87 vmax over 24.2 Tac @ 2.280”. Also loaded 5 @ 2.375” (.020” jump) and 5 @ 2.280” over 24.2 of 8208xbr. I guess I could hold onto them for break in and testing of a new replacement barrel should they send me one.

 

[Thegman]

Hey all, just heard from Stu at Satern:

Good afternoon Peter, I just got off the phone with Kyle. He brought me some information today and I showed the boss, it turns out there has been a revision on the 6x45 print with Saami that we were unaware of. So we have been running a chamber reamer that was made to the original print. Thanks to Kyle, he sent me a print of the reamer he bought and had a barrel fixed with. I'm holding on to the remaining barrels to see if we can fix them with an Alpha reamer when we get it. I can assure you we will take care of this and you all won't be left out there flapping in the wind. If you want to reach out to your crew and let them know, that would be great!Looking forward to having this resolved and everybody walking away happy.

Thanks, Kyle!

Sounds like progress, but I'm not seeing how a smaller reamer is going to fix an oversize chamber on an already finished barrel. I wouldn't think there would be enough shoulder length and barrel length left to re-chamber to smaller dimensions. I'd think a smaller reamer would have to go a neck length deeper to fix that part. OTOH, I'm not a barrel maker, so there is that...

 

[Jesseb]

These barrels can not be re-chambered. They would have to replace the barrels.

 

[robtattoo]

These barrels can not be re-chambered. They would have to replace the barrels.

Kinda regretting telling Deb I wouldn't send mine back now.

I tried 2 other powders today, just to check velocity.

24.1gr IMR4895 = 2277 (3 shot average)
24.5 Norma 202 (4064 equiv) = 2389 (3 shot average)
No pressure signs at all. The Norma looks promising, maybe around 26gr (which would be about right, since it's discontinued )

 

[ezwy]

AR bolts absolutely vary a little, but this explanation from X-Caliber doesn't quite make sense. If the Solo bolt left too little headspace to chamber a fully sized case, which is possible, the case shoulder would still prevent it from running a bullet into the lands(??). That's almost solely a function of bullet seating depth.

I would agree with you that the shoulder should have been what hit. But it was Like the top of the neck was hitting a rifling. It almost seemed more like a concentricity problem….. but a different bolt fixed it.

 

[gbflyer]

Here is my reamer print from a couple years ago:View attachment 6x45 std.pdf
I would be surprised if a slight difference in chamber spec is causing big groups. That is normally an inconsistent groove diameter throughout the length of the barrel.