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#6096547 - 12/22/15 11:36 AM Can a barrel...
Deerhunter61 Online   content
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Registered: 08/27/08
Posts: 5449
Loc: DFW
Guys,

I had a custom rifle built and it would shoot 1/2" or better 5 shot groups. It was incredibly accurate! But now it is performing awful! I've verified it's not the scope. I've reworked my loads even buying new brass etc and it just shoots like crap! Is it possible that the barrel could be shot out after 1500 or so rounds?

Thanks,

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#6096551 - 12/22/15 11:39 AM Re: Can a barrel... [Re: Deerhunter61]
MacDaddy21 Online   content
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Registered: 08/19/11
Posts: 1593
Loc: CO
What caliber?

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#6096554 - 12/22/15 11:39 AM Re: Can a barrel... [Re: Deerhunter61]
Tff caribou Offline
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Registered: 08/27/12
Posts: 2996
Loc: Watauga, TX
What caliber, and what bullet at what velocity.

I won't be able to answer your question, but they will need to know that to answer it.
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#6096555 - 12/22/15 11:39 AM Re: Can a barrel... [Re: Deerhunter61]
Brother in-law Online   content
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Registered: 07/08/07
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What caliber?

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#6096557 - 12/22/15 11:40 AM Re: Can a barrel... [Re: Deerhunter61]
RiverRider Online   content
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Registered: 11/11/07
Posts: 6193
Loc: Wise Co.
Could need a good cleaning too.
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Originally Posted By: Cleric
God I am hating caliber threads more and more

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#6096565 - 12/22/15 11:46 AM Re: Can a barrel... [Re: Tff caribou]
ChadTRG42 Offline
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Registered: 09/16/09
Posts: 9393
Loc: Lewisville, TX
Originally Posted By: Tff caribou
What caliber, and what bullet at what velocity.

I won't be able to answer your question, but they will need to know that to answer it.


+1.
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#6096617 - 12/22/15 12:25 PM Re: Can a barrel... [Re: Deerhunter61]
Deerhunter61 Online   content
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Registered: 08/27/08
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6.5 Creddmoor, 2900 fps, Berger 140 grain VLDs

As for the cleaning I've done that...never tried to remove copper though.

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#6096627 - 12/22/15 12:31 PM Re: Can a barrel... [Re: Deerhunter61]
RiverRider Online   content
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Registered: 11/11/07
Posts: 6193
Loc: Wise Co.
The metal fouling could be the culprit. I don't think a 6.5 Creed more should be shot out in 1500 rounds unless you abuse it.

There are some good copper solvents out there that can handle the metal fouling, but it sounds like you may have to spend some time getting it out of there.
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Originally Posted By: Cleric
God I am hating caliber threads more and more

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#6096658 - 12/22/15 12:46 PM Re: Can a barrel... [Re: Deerhunter61]
dee Offline
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Registered: 04/10/10
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2900 with a 140?
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#6096733 - 12/22/15 01:22 PM Re: Can a barrel... [Re: dee]
FiremanJG Offline
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Registered: 12/16/08
Posts: 17893
Loc: Wolfe City, TX
Originally Posted By: dee
2900 with a 140?


Exactly my thought confused2 That had to be a misprint, or brass would be trashed after one firing, and it would still take a 30" barrel to get there.

Primer pockets loose?
Same powder lot?
Same bullet to lands relationship (chasing lands due to throat erosion)

If the answers are all yes, then I would certainly clean the hell out of it. It's now telling you it needs it.

130 gr bullet on a hot load might cook the barrel in 1500 rounds, but that's a big might. My .260 Rem took a nose dive around 2500 rounds.
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#6096746 - 12/22/15 01:27 PM Re: Can a barrel... [Re: dee]
redchevy Online   content
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Registered: 10/25/04
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Originally Posted By: dee
2900 with a 140?

That's standin on the gas!
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#6096750 - 12/22/15 01:30 PM Re: Can a barrel... [Re: Deerhunter61]
ChadTRG42 Offline
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Registered: 09/16/09
Posts: 9393
Loc: Lewisville, TX
Originally Posted By: Deerhunter61
6.5 Creddmoor, 2900 fps, Berger 140 grain VLDs

As for the cleaning I've done that...never tried to remove copper though.


Are you chasing the lands with the VLD? The VLD's like to be seated at or near the lands. If you have 1500 rounds and are using your original seating depth, you may need to seat the bullet out further. If you are getting 2900 fps with a 140, that's a lot of pressure and speed for a 140 in a CM. I know of guys trashing a barrel at 1100 rounds running the 130 VLD's at 2950 in a 260 Rem. The CM would be very similar to barrel life as the 260 Rem, maybe a touch better for the CM.
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#6096782 - 12/22/15 01:45 PM Re: Can a barrel... [Re: Deerhunter61]
caddokiller Offline
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Registered: 09/25/06
Posts: 5414
Loc: midlothian texas
Originally Posted By: Deerhunter61
6.5 Creddmoor, 2900 fps, Berger 140 grain VLDs

As for the cleaning I've done that...never tried to remove copper though.


If that is correct I would say yes it is highly likely its shot out. But surely that's a mistake right?
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#6096792 - 12/22/15 01:52 PM Re: Can a barrel... [Re: redchevy]
Deerhunter61 Online   content
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Registered: 08/27/08
Posts: 5449
Loc: DFW
Originally Posted By: redchevy
Originally Posted By: dee
2900 with a 140?

That's standin on the gas!


Sorry guys...2850... I'm getting 2900 with 123 Amax out of my 6.5 CM AR...ugh. As for my barrel it's 28" and it did Chrono at 2850 and the bullet drop etc seem to confirmed the fps...



Edited by Deerhunter61 (12/22/15 01:56 PM)

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#6096845 - 12/22/15 02:40 PM Re: Can a barrel... [Re: Deerhunter61]
FiremanJG Offline
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Registered: 12/16/08
Posts: 17893
Loc: Wolfe City, TX
What about the other answers we need?
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