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shooting 6.5 Creedmoor out of a .308 barrel

Since this is a factory gun with a factory chamber, could the reamer be at the largest dimensions (worn-out) and contributing to a sloppy fit. Looks like people are talking about their own reamer which is to the best specs they ordered. Maybe a case of max loose chamber dimensions and tightest cartridge dimensions would allow this?
 
Since this is a factory gun with a factory chamber, could the reamer be at the largest dimensions (worn-out) and contributing to a sloppy fit. Looks like people are talking about their own reamer which is to the best specs they ordered. Maybe a case of max loose chamber dimensions and tightest cartridge dimensions would allow this?
The guy i got the ammo from was an off the shelf savage axis. The fired brass measures exactly the same as brass fired from a 5r remington 700 i had here. The gun i just built was a match 308 chamber with a kelbly action. I put in one of the rounds from the original box the guy gave me and also put in one of my match prepped rounds sized in a redding fl bushing die to .002 to .003 headspace. The bolt was extremely hard to close. You had to push it forward hard as you cammed it closed. It worked just like a sizing die i guess.
 
I accidentally fired a 6.5 CM round through my .308 WIN this morning. I immediately searched the internet to research the consequences and found this thread. Factory Federal Terminal Ascent. Bighorn Origin action, Carbon Six barrel installed and inspected less than 60 rounds ago by a qualified gunsmith. The round chambered and fired without a problem. Had powder residue in barrel. Ran a bore snake through it and fired a three shot group (with the correct ammo). No issues. Pictures attached. The pic with the three cases are: loaded .308, 6.5 brass fired n .308 chamber, and 6.5 brass fired in 6.5
5C981D89-E30D-495E-8F60-DA2B81236404.jpegE756EA94-992C-472F-B1D3-A408AA12871D.jpeg471415C9-FE24-48F3-AAA2-E9488BAE5E65.jpegD9BEB8F0-1A92-4A30-9A0B-2ABAA9041CAD.jpeg
 
FWIW, about a month ago a guy at the range managed to load and fire a 300 blackout in his .223 AR15. Blew it to pieces but no one was hurt as the tables on either side of him were empty. It seems he comes to the range with several loaded magazines and mistakenly picked one up loaded with the wrong ammo.
 
I accidentally fired a 6.5 CM round through my .308 WIN this morning. I immediately searched the internet to research the consequences and found this thread. Factory Federal Terminal Ascent. Bighorn Origin action, Carbon Six barrel installed and inspected less than 60 rounds ago by a qualified gunsmith. The round chambered and fired without a problem. Had powder residue in barrel. Ran a bore snake through it and fired a three shot group (with the correct ammo). No issues. Pictures attached. The pic with the three cases are: loaded .308, 6.5 brass fired n .308 chamber, and 6.5 brass fired in 6.5
View attachment 1396244View attachment 1396245View attachment 1396246View attachment 1396247
Come on man, i read on here you cant do that (even tho the ones who have tried in real life have done it).
 
I tried and I can't do it without forcing/beating on something. I guess my chamber and cases are out of spec? :rolleyes:
 
I just read this last Page, as I WAS,. "Curious" about ,.. W T fudge, is STILL, going on ???
Looks like, Darwin's coming for, the forgetful, Old and, the CARELESS,.. Young,..,.YIKES !
Well it's being suggested that a 6.5 Creedmoor case that measures within tolerance and is clean and dry can be chambered in a .308Win chamber which is also clean and dry without applying an amount of force that anyone familiar with clambering a round in a bolt action rifle wound not recognize as being excessive. Even though the math and drawings show this isn't possible and at least as many have tried unsuccessfully as those who tried and said it's possible.
I've no idea what is going on but something isn't right somewhere.
 
A couple of Months ago, I caught myself putting, 6 XC Ammo, on the Bench with, my 6.5 Creed Rifle, in the Rest !
I'm going to, have to Be,.. more, careful !
Getting Old,.. Suxx !
 
Well it's being suggested that a 6.5 Creedmoor case that measures within tolerance and is clean and dry can be chambered in a .308Win chamber which is also clean and dry without applying an amount of force that anyone familiar with clambering a round in a bolt action rifle wound not recognize as being excessive. Even though the math and drawings show this isn't possible and at least as many have tried unsuccessfully as those who tried and said it's possible.
I've no idea what is going on but something isn't right somewhere.
Depending on where the tolerance falls, the math and drawings show that a 6.5 Creedmoor cartridge that is in SAAMI specs can fit into a 308 Winchester chamber that is in SAAMI spec.

They can also be in SAAMI spec and not fit. See post #96.
 
Depending on where the tolerance falls, the math and drawings show that a 6.5 Creedmoor cartridge that is in SAAMI specs can fit into a 308 Winchester chamber that is in SAAMI spec.

They can also be in SAAMI spec and not fit. See post #96.
Enough tolerance stacking and I suppose many things that shouldn't be are possible.
 
Had a Neuro Surgeon ask me to diagnose problem with his rifle. Beautiful Weatherby with sheared extractor. Noticed some odd straight wall cases on the ground. Head said 308. Asked caliber of rifle- 30 06! Had to ask what hospital he worked for, you know- just in case.
 
I ain't convinced....
Your loaded 308 cartridge brass has uneven shoulder, and a dented in too much lube on shoulder?... reject grage sale ammo comes to mind...surprisingly the 308 ammo fit the 308 chamber!
The fireformed brass has less then filled out shoulder with a full load...plus holes and lube dents in the shoulder. Weird...
And you just happened to have do your firing mixup just in time to post about it...
Strange coincidences.
 
Since this is a factory gun with a factory chamber, could the reamer be at the largest dimensions (worn-out) and contributing to a sloppy fit. Looks like people are talking about their own reamer which is to the best specs they ordered. Maybe a case of max loose chamber dimensions and tightest cartridge dimensions would allow this?
Worn out reamer makes a smaller chamber, think about it.
 

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