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160gr Matrix

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  #190  
Unread 10-04-2013, 10:42 AM
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Re: 160gr Matrix

Quote:
Originally Posted by elkaholic View Post
What is your barrel spec?......Rich

Obermeyer SS-5R
1-8.4" twist
Approx Length= just short of 30" IIRC


t
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  •   #191  
    Unread 10-04-2013, 11:09 AM
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    Re: 160gr Matrix

    Quote:
    Originally Posted by Outlaw6.0 View Post
    Obermeyer SS-5R
    1-8.4" twist
    Approx Length= just short of 30" IIRC


    t
    Thanks, that explains the velocity without a lot of pressure. I can reach 3050' with my 6.5 SS with a 26" barrel, but that is max. I wish I could find some N570......rich
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      #192  
    Unread 10-04-2013, 11:21 AM
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    Re: 160gr Matrix

    Quote:
    Originally Posted by elkaholic View Post
    Thanks, that explains the velocity without a lot of pressure. I can reach 3050' with my 6.5 SS with a 26" barrel, but that is max. I wish I could find some N570......rich

    I wish I could find some more!! Luckily I still have a few pounds in reserve, it's the only powder this tube has ever seen.

    I'm hoping for 3150 or so, if I can get there without tearing up my brass, i'll probably stop....maybe

    I was really surprised to see the 160 stabilize in my rig, the 140 CEB's hit the target dern near sideways.. Accuracy with the 160 has been REALLY good, I have high hopes.


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      #193  
    Unread 10-04-2013, 11:40 AM
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    Re: 160gr Matrix

    I'd try some R-33. N570 and Retumbo produced about the same velocity in my 6.5-300wm. R-33 runs about 80fps faster for the same pressure. I only shoot Retumbo because it's slightly more accurate. I have some Nosler cases now to try, I've been using RWS, to see what I can get for speed and I'll try R-33 again to see what happens. The RWS cases are about 3grs less capacity but as tough of a case as you'll find.
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      #194  
    Unread 10-04-2013, 11:44 AM
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    Re: 160gr Matrix

    Quote:
    Originally Posted by IdahoCTD View Post
    I'd try some R-33. N570 and Retumbo produced about the same velocity in my 6.5-300wm. R-33 runs about 80fps faster for the same pressure. I only shoot Retumbo because it's slightly more accurate. I have some Nosler cases now to try, I've been using RWS, to see what I can get for speed and I'll try R-33 again to see what happens. The RWS cases are about 3grs less capacity but as tough of a case as you'll find.
    Ya, I can't find any rl33 either. I agree with the RWS cases. They are plenty tough......Rich
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      #195  
    Unread 10-04-2013, 12:03 PM
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    Re: 160gr Matrix

    R-33

    Bruno Shooters Supply: Alliant Powder Reloder 33 - 8lb ***IN STOCK 9-23-13***

    It says in stock but I'd call to verify. R-33 has been one of the most available powders in the last 9-10 months. I have seen it at least once a month somewhere.
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      #196  
    Unread 10-04-2013, 08:22 PM
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    Re: 160gr Matrix

    I annealed some 160 Matrix today. Here is the procedure that I used:
    Drilled holes in ceramic block that left about 0.300" of the bullet exposed.
    Heated tips with torch about 8 seconds on each side.
    Let set until I was sure tha lead was set up.
    Polished bullets for a few minutes(make sure you don't use media that clogs tips)
    This seemed to work pretty well. I tried heating one longer; approx 25-30 seconds total and lead bubbled out the open point (NOT GOOD).....Rich160gr Matrix-dscf0827.jpg

    160gr Matrix-dscf0828.jpg

    160gr Matrix-dscf0826.jpg
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