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270 Win and 165/175 Matrix Range Report

 
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Old 09-20-2013, 08:46 PM
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Re: 270 Win and 165/175 Matrix Range Report

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Originally Posted by 270 MKV View Post
I can't go over 57.5 grains of H1000 without overly flattening primers and occationally getting some gas leakage around the primer. These loads the 165 Matrix at 2840.

I am starting to transition over to Retumbo for these loads...I can get some additional velocity...close to 2890 before I get into pressure signs.

H1000 is now the go to powder when using the Nosler LRAB in my rifle.
That's actually pretty good out of a 27". I was getting the following out of a 30" for 165 Matrix while fire-forming to .270 AI:

57.5 grains of H1000 = 2801 FPS (no pressure)
58.5 grains of H4831SC = 2981 FPS (no pressure)
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