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Discussion Starter #1
Could anyone tell me where to find info for a starting load for AA2520 in the .375 Win.?  I have been given a starting load which I'm sure is ok, but ideally I'd like to hear from others.  If it's basically what I've got now, then I know I'm good to go.
  I called Accurate Powder but they didn't have printed reference for this combination and the very nice tech person was unwilling to advise me without verified data.  I understand that the way things are today.
  I'm using the 220 grain Hornady bullet.  Any help would be greatly appreciated.
 

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Buster,
        I just looked in the AA # 2 manual, and no listing is preent for AA2520. You can call them at 1-800-416-3006, and ask them anything pertaining load data. Your question will probably be answered by a 82 year young gentleman, whose name escapes me at the moment, who is sharp as a tack ! I've had good luck with AA1680 and ReL 7 in this caliber, shooting cast. I'm sending a 270 gr. FN GC bullet downrange at 2200 fps with groups going about 1.5" at 100 yds. from a Marlin 375. Not too shabby. It's easily becoming one of my favorites(o.k., I love all my levers <!--emo&:D--><img src="http://beartoothbullets.com/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=':D'><!--endemo--> ).

             Hope this helped you out some. Let us know what you find out.

                           Jeff
 

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Discussion Starter #3
Thanks cb for the comeback.  I did call Accurate and spoke with Mark in the tech dept.  He had no info for that particular combo.   I might just spring for some AA1680 powder but I've got a good quantity of the 2520, and have had good results with it in everything I've tried.  I really like the rifle and cartridge combo, mine is a M375 also.
Thanks again.
 

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Hello Buster:

Did some investigating about the possibility of using AA 2520 in the .375 Win. I think you'll find that this powder is too slow burning for good performance in this cartridge. Available case capacity is fairly limited and slower/bulkier powders don't provide enough fuel.

AA 1680 appears to be an excellent choice for the .375 Win. It's an extremely fine grained ball powder and makes good use of the available space - and generates top velocities at modest pressure. Reloader 7 is another good choice but in my experience - anything I've charged with this powder seems to kick noteably harder than when using other powders.

Best regards-

Sky C.
Longmont, CO
 
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