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			Downwind, I don't know what loads you are using, but I have both a .264 WIN and a 338-06.  In the 264, 71grs of H4831 with a 95g HNDY VMAX gives me a solid 3650 fps and 3700 on a warm 
day. The 125 NOS PART with 65grs of H4831 gets me 3375fps. 
And the 140g NOS PART loves 60.5grs of H4831 at a solid 3000fps. H4831Is the powder in the .264 WIN. 
 As for the 338-06,H 414 is the final word as powder of choice for all bullet weights. 
IMHO.
		 
		
		
		
		
		
		
		
		
	
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