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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Tue Sep 26, 2017 1:45 pm 

Joined: Mon Apr 06, 2009 10:27 am
Posts: 668
Location: Northern CO
Big difference between getting a 69 grain bullet rolling via a 25 gr charge of H335.... and firing a 140 in front of a 40+ grain charge of 4350.... with the same cap.

There's also a big difference between sticking your anmo in the freezer.... and laying on a ditchline for two hours in 0 degree weather, waiting for a coyote to come by. When everything is cold, it's different than when just your ammo is cold.

I see/hear all the stuff about how the small rifle primer is fine in the cold, and how doesn't matter.... but my empirical evidence speaks volumes to the contrary... if only just to me.

I like the x47 conceptually.... and that rifle was the most accurate rifle I ever owned... if it was 20+ degrees, but it went tits-up in the cold. I agree on the benefits you mentioned such as super low ES/SD.... until my ES on one shot is 1247fps.... and a critter runs away snickering at my flaccid projectile dysfunction. I'll take a little higher ES/SD in exchange for reliability under a broader range of conditions.

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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Tue Sep 26, 2017 9:02 pm 

Joined: Sun Jun 19, 2011 10:00 pm
Posts: 1460
Location: Northern Idaho
My only response is what the cartridge was designed for and use it as it was intended? There's plenty of cartridges out there that'll do what you're after, and without any issues? Which by the way anyone can use the same ammo that has a large rifle primer in a 6.5 Creedmoor , can't say that for too many other cartridges? Fact is the case comes with both designs, so it's a mute point IMO!

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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Thu Oct 12, 2017 10:50 am 

Joined: Wed Dec 28, 2016 6:44 pm
Posts: 20
SBJ358,

I too have a 6.5 Swede and I have been thinking about a CM. I am interested in the load you are getting using RL26, 140 gr AB's getting 2900fps. Please share.

Thank you.


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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Fri Oct 13, 2017 4:02 pm 

Joined: Wed Dec 28, 2016 6:44 pm
Posts: 20
SBJ358,

I found the thread with load data in the reloading forum.

Thank you


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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Fri Oct 13, 2017 6:58 pm 

Joined: Sun Dec 24, 2006 12:20 pm
Posts: 28162
Location: Northern Virginia
No problem... slow to get back to this. Hope it helped you out a little.

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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Sun Nov 26, 2017 8:19 am 

Joined: Sun Nov 26, 2017 8:04 am
Posts: 7
If you reload the 6.5 x55 (long action) performs better than the 260 in modern rifles.
The factory loads for the Swede are abysmal with numbers I measured for Winchester white box 140 gr advertised as 2500 or so actually measured at 2200.


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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Sun Nov 26, 2017 8:20 am 

Joined: Sun Nov 26, 2017 8:04 am
Posts: 7
If you reload the 6.5 x55 (long action) performs better than the 260 in modern rifles.
The factory loads for the Swede are abysmal with numbers I measured for Winchester white box 140 gr advertised as 2500 or so actually measured at 2200.


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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Sun Nov 26, 2017 9:04 am 
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Joined: Thu Apr 06, 2006 8:42 am
Posts: 13731
Location: Washington State
ericbc7 wrote:
If you reload the 6.5 x55 (long action) performs better than the 260 in modern rifles.
The factory loads for the Swede are abysmal with numbers I measured for Winchester white box 140 gr advertised as 2500 or so actually measured at 2200.


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Only 2200 fps? Ya, that's pretty poor. Phooey. But you're right, handloading will cure that issue.

Guy


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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Sun Nov 26, 2017 9:16 am 

Joined: Sun Nov 26, 2017 8:04 am
Posts: 7
Guy Miner wrote:
ericbc7 wrote:
If you reload the 6.5 x55 (long action) performs better than the 260 in modern rifles.
The factory loads for the Swede are abysmal with numbers I measured for Winchester white box 140 gr advertised as 2500 or so actually measured at 2200.


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Only 2200 fps? Ya, that's pretty poor. Phooey. But you're right, handloading will cure that issue.

Guy
2200 was a measured number using a magnetospeed crono
I was astonished
And there was some variance but the avg was slightly above 2200
But lowest was at 2200



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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Sun Nov 26, 2017 9:52 am 

Joined: Sun Dec 24, 2006 12:20 pm
Posts: 28162
Location: Northern Virginia
I saw the same thing with the PPU 139’s. Handloading fixer that up easy enough though.

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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Sun Nov 26, 2017 10:09 am 

Joined: Sat Oct 23, 2010 8:04 am
Posts: 1954
Location: Delta Junction, AK
ericbc7 wrote:
2200 was a measured number using a magnetospeed crono
I was astonished
And there was some variance but the avg was slightly above 2200
But lowest was at 2200


That's the kind of dismal performance that's really limited the appeal of surplus cartridges here. A friend of mine had been a fan of the 7x57 until he chronographed some of it. He still shoots the 7x57, but he's a hand loader now.

200 fps below the published MV isn't unheard of and the published figures are pretty mild to start with.


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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Sun Nov 26, 2017 10:35 am 

Joined: Sun Nov 26, 2017 8:04 am
Posts: 7
hodgeman wrote:
ericbc7 wrote:
2200 was a measured number using a magnetospeed crono
I was astonished
And there was some variance but the avg was slightly above 2200
But lowest was at 2200


That's the kind of dismal performance that's really limited the appeal of surplus cartridges here. A friend of mine had been a fan of the 7x57 until he chronographed some of it. He still shoots the 7x57, but he's a hand loader now.

200 fps below the published MV isn't unheard of and the published figures are pretty mild to start with.


I understand the manufacturers fear of over pressure, and since there will be some moron that puts modern ammo in an old rifle I can’t blame manufactures.
I do know that with handloading I can get 2850 to 2900 FPS with a 140 gr bullet with the 6.5x55


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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Sun Nov 26, 2017 12:17 pm 
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Joined: Tue Jul 28, 2015 11:10 am
Posts: 970
I also chronographed the Winchester’s when I had a 6.5 Swede. I practically got the same velocity some of y’all did. I handloaded though, and that really makes the Swede shine!!


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 Post subject: Re: 6.5 Creedmoor - why?
PostPosted: Mon Nov 27, 2017 10:53 am 

Joined: Tue Sep 04, 2012 11:08 pm
Posts: 247
Location: Back home in IN
I like the Swede. Really.

But if you want to maximize your 6.5 performance in a long action with handloading, a 6.5-06 trumps it easily. Yes, it burns a little more powder. But so does the Swede than a Creed.

If you want to maximize your 6.5 performance in 2.8" mag box, the Creed is the way to go. It nips right on the heels of a maxed-out Swede.

If you've got short action mags closer to 3.0", then a 260 AI would squeeze about as much horsepower out of a 6.5 as you're gonna get.


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