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Best brasses for a 264WinMag

 
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  #1  
Old 09-19-2012, 05:10 PM
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Join Date: Mar 2011
Location: Spain
Posts: 20
Best brasses for a 264WinMag

Hello folks!

I want to get as much as i can from my old model 70 winchester, chambered in 264 win mag.

Find brasses for that cartridge could be hard, but in Spain this is VERY hard. After looking arround, i have get Winchester and Remington brasses, with, of course, the propper head-stamp.

But i have some norma 7 mm rem mag brasses, and i can full lenght size them and get 264 norma brasses. I donīt care about head stamping, as the 264 is the only magnum belted cartridge in my safe.

I have noted that the chamber of this rifle is a little bit big, because the brasses are hard to full size. I have bought a hornady neck sizer, so i will fire one shoot (with the norma, RP or WW cases) and then look after a good load with the "expanded" case, neck-sizing it. I think this will give me more uniformity in speeds and probably more speed.

Am I going in the right way?

Just a last question... what speeds and groups can I spect from this 24" sporter barrel? I have bedded the action and floated the barrel, and iīm wissing to test new loads! Before that, it was hard to keep it shooting 1,5MOA or slightly better at 100 meters (110 yards)

The "expanding" shoots will be made with powerpoint and corelockt 140 grains bullets (to save money), but the final load will be with barnes TSX 130 and/or hornady SST 140.

All information are wellcome!!

Thanks a lot!
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  #2  
Old 09-20-2012, 10:56 PM
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Join Date: May 2006
Location: Oklahoma City Ok
Posts: 503
Re: Best brasses for a 264WinMag

I can't answer your question as to sizing down the 7mm brass, but with the 24" barrel you should see around 2950-3000 fps give or take with the 140's and more with the TSX 130! My rifle does really good with Retumbo, VV N570, and H870 lit with CCI250's hope this help Guy!!!!
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  #3  
Old 09-21-2012, 12:58 PM
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Join Date: Jul 2007
Posts: 134
Re: Best brasses for a 264WinMag

I have used Remington and Winchester brass and have not seen that one is better than the other. I have also resized 7 mags to 264 with mixed results.

As for speeds, I can get 3050 to 3100 with 140's and about 3250 with the 129/130 gr. bullets.
This is also with a 24" barrel 1980's Winchester M70.
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  #4  
Old 09-22-2012, 03:43 AM
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Join Date: Mar 2011
Location: Spain
Posts: 20
Re: Best brasses for a 264WinMag

Thank a loy guys!!

I will prepare the cases and sort by weight, then start working up loads.

Till today, i only found sweet spot on a mild (maybe light) load, so i hope found a good load at, at least, 2950fps.

Tjay, what accuraccy are you getting of your M70? I'm planning to shoot 140 SST and 130 TSX...

The magazine box is small, so i can't adjust the COAL to get the bullet close to lands, if i didn't want to feed it one by one...
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  #5  
Old 09-22-2012, 09:30 AM
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Join Date: Jul 2007
Posts: 134
Re: Best brasses for a 264WinMag

I have been getting 1" groups at 100 yards with the 140 gr. Nosler Partition. My best groups have been with 125 gr. Nosler Partitions at max load of H1000 in the 3/4" range if I do my part.
I am still working on the 129/130's and do not yet have any accuracy data as I was looking at a new powder and where it maxed out. That said without trying to max accuracy I have groups in the 1" to 1.5" area.
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  #6  
Old 09-23-2012, 09:36 AM
Silver Member
 
Join Date: Jul 2007
Location: terlton, oklahoma
Posts: 379
Re: Best brasses for a 264WinMag

All of you are missing a lot of accurate loads if you don't try thr new
Hornady 123 amax with a .510 B C
I use them in 264 & 6.5 rem mag & 6.5x55
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  #7  
Old 09-24-2012, 07:56 PM
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Join Date: Jun 2011
Location: WY
Posts: 164
Re: Best brasses for a 264WinMag

Okie, what kind of velocity are you seeing with the 123 a max? Any experience on game with that bullet?
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