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accuracy load .264 win imp suggestion

 
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  #1  
Old 09-12-2003, 05:50 PM
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Join Date: Nov 2001
Location: culpeper va
Posts: 71
accuracy load .264 win imp suggestion

I'm going to slow down my win mag and see if I can get some better results. I believe the rule of thumb is about 3000fps for accuracy. I am currently running 3250fps with 71gr 4831sc and a 140 A-max. Does anybody have a ballpark figure to get me in the 2900 range for a starting point?
Thanks
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  #2  
Old 09-13-2003, 12:58 AM
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Join Date: Jul 2002
Location: France
Posts: 390
Re: accuracy load .264 win imp suggestion

I use a 264 WIN wilcat ( 6.5/300 DTC Yuma ) wich is 264 WIN made from 300 WIN MAG to get long neck and chamber have a paralel throat , that the same capacity as the 264 WIN

Vita N160 can deliver "light load" under 3000 fps with 54 to 56 gr you are you below 3000 fps with 142 SMK molyand use only regular primer as 210 or 210 M and not 215

DON T TRY TO MAKE REDUCED LOA WITH POWDER SLOWER THAN 4350 BURNING RATE YOU RISQ SEE ( secondary effect explosion )

3000 fps is just a myth of bench rest shooter I have small 6.5 ( as 6.5/22.250 ) wich is deadly accurate at 2600 fps and my 6.5/300 Yuma full load is very nice at 3300 fps in a 31 inch barrel
velocity is not the rule , just make Ladder test to tune your load , if you plan to shoot below 3000 fps , 6.5/06 or better 6.5/270 can easy do that for less money

good shooting

DAN TEC
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  #3  
Old 09-13-2003, 12:18 PM
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Join Date: Nov 2001
Location: culpeper va
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Re: accuracy load .264 win imp suggestion

Secondary effect explosion sounds really bad. What is it?
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  #4  
Old 09-13-2003, 12:37 PM
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Join Date: Jul 2002
Location: France
Posts: 390
Re: accuracy load .264 win imp suggestion

SEE is an very unknow effect in internal balistic , the result is just gun explosion , for unclear or unknow reason powder doesn t burn but burst and destroy the rifle and in most case kill the shooter

this phenomen appear when you try to use reduce charge of slow to very slow powder in big volume case .

SO CAUTION when you try to develop light load in big water capacity case

good shooting

DAN TEC
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