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#6133666 - 02/04/12 05:00 PM load data for 264 win mag
salasj Offline
Member

Registered: 01/06/12
Posts: 14
I need some load data on 140 gr SST 264 win mag. What powders work best, any info would be appreciated.

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#6133699 - 02/04/12 05:08 PM Re: load data for 264 win mag [Re: salasj]
addicted Offline
Campfire Regular

Registered: 08/17/09
Posts: 845
Loc: Kingwood, TX
Retumbo worked great with 140 Nosler Accubonds. 1st group measured 1/2" or better. I can't remember the charge weight.
_________________________
Drink and be merry for soldiers die for your freedoms.

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#6133733 - 02/04/12 05:14 PM Re: load data for 264 win mag [Re: addicted]
addicted Offline
Campfire Regular

Registered: 08/17/09
Posts: 845
Loc: Kingwood, TX
Found it, 60 grains of Retumbo, OAL was 3.235".

Good Luck.
_________________________
Drink and be merry for soldiers die for your freedoms.

Semper Fidelis!

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#6133736 - 02/04/12 05:15 PM Re: load data for 264 win mag [Re: addicted]
salasj Offline
Member

Registered: 01/06/12
Posts: 14
Thanks addicted for info! I recently had my 7mm weatherby Vanguard rechambered to 264 win mag. I used to own a 264 win mag and had a nice load using 140 gr XLC ahead of IMR 7828 getting 3,200 fps and shot 1/2 groups. I let my friend use it and it got stolen

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#6133786 - 02/04/12 05:26 PM Re: load data for 264 win mag [Re: salasj]
gerrygoat Offline
Campfire Regular

Registered: 09/12/07
Posts: 1483
Loc: B.C.
Hodgdon's max is 63.5 gr of Retumbo I have been able to work up to that with both the 140 gr Accubond and Partition can't see why you couldn't work up the 140 gr SST. Magnum is another powder that works well for some guys Ramshot's max is 65.3 gr. I worked up to 65 gr with both Nosler's but didn't get the accuracy that Retumbo gives me but your gun may.

Just noticed Ramshot says you can go up to 68.3 gr of Magnum with the 140 gr Hornady A Max.


Edited by gerrygoat (02/04/12 05:28 PM)

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#6134179 - 02/04/12 06:57 PM Re: load data for 264 win mag [Re: gerrygoat]
Idaho_Shooter Offline
Campfire Outfitter

Registered: 12/22/02
Posts: 8669
Loc: West Treasure Valley, Idaho
Magnum and Retumbo are the way to go if you are chasing maximum velocity with 140's.

They were not around when I was working with my previous barrel in 264. I settled for about 3050 fps with 140's and H1000.

I have some 140's on the shelf along with some Magnum and Retumbo. On the "to-do" list is finding out what they will do from my new 27 inch barrel.
_________________________
My ideal as a conservative:

That each person may reap as he/she has sown.

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#6134225 - 02/04/12 07:14 PM Re: load data for 264 win mag [Re: Idaho_Shooter]
salasj Offline
Member

Registered: 01/06/12
Posts: 14
Thanks for the information. Recently purchased a box of HMS Trophy Gold extended range 140 gr hpbt. I used my chrony and I only got 2,760 fps. Accuracy was 1" group but those velocity are terrible, especially with a 26" barrel. I was disappointed because I saw those videos were there shooting game all the way to 900 yds. I bought some US 869 going to see if I can do a lot better then that.

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#6134950 - 02/05/12 05:07 AM Re: load data for 264 win mag [Re: salasj]
smokepole Online   content
Campfire 'Bwana

Registered: 06/30/06
Posts: 13109
Loc: Colorado
For the 140 SST Hornady lists these powders as gving the best velocities: H870 (fastest), IMR7828, IMR4831, and IMR 4350. Also AA 8700. I'd agree on the Retumbo, but they don't list any load data.
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"Neither sport nor art should be unnecessarily cluttered and complicated."


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#6135642 - 02/05/12 08:30 AM Re: load data for 264 win mag [Re: salasj]
gerrygoat Offline
Campfire Regular

Registered: 09/12/07
Posts: 1483
Loc: B.C.
Originally Posted By: salasj
Thanks for the information. Recently purchased a box of HMS Trophy Gold extended range 140 gr hpbt. I used my chrony and I only got 2,760 fps. Accuracy was 1" group but those velocity are terrible, especially with a 26" barrel. I was disappointed because I saw those videos were there shooting game all the way to 900 yds. I bought some US 869 going to see if I can do a lot better then that.


I tried US869 with 140 gr Partitions working up slowly with Speer's data and got 3030 fps with 76 gr, their max load. With your 26" barrel you should be able to get more speed than mine.

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#6136154 - 02/05/12 10:32 AM Re: load data for 264 win mag [Re: salasj]
Idaho_Shooter Offline
Campfire Outfitter

Registered: 12/22/02
Posts: 8669
Loc: West Treasure Valley, Idaho
Good luck with the 869. I understand it is very close in burn rate to H870.

I tried to use H870 in my 26 inch Winchester barrel. But it was too slow to make decent velocity in my barrel. Even when I passed the maximum recommended charge weight by several grains, I could not get over 3100 fps.

I just found some notes from May 2006 using Magnum and a CCI 250 primer with the Sierra 140 gr spitzer boat tail in a 26 inch barrel.

65.0 gr --2858 fps
66.0 gr --2898 fps
67.0 gr --2951 fps
68.0 gr --2991 fps
69.5 gr --3043 fps
70.0 gr --3038 fps
70.5 gr --3080 fps
71.0 gr --3150 fps
71.5 gr --3087 fps
72.0 gr --3155 fps
72.5 gr --3133 fps
73.0 gr --3188, 3153, 3133 fps

ETA: In reviewing the earlier posts, I see that my loads are significantly over those listed as maximum. This barrel always required over maximum charges to make velocity.

In 2006 we were pretty much flying by the seat of our pants with any of the new powders in the 264. There was very little published data available.



_________________________
My ideal as a conservative:

That each person may reap as he/she has sown.

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