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6.5x284 LRH Barnes 127 Grain LRX?

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  #1  
Unread 06-29-2013, 08:00 PM
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6.5x284 LRH Barnes 127 Grain LRX?

I used a chronograph for the first time today. I am shooting a 6.5x284 LRH with 127 Barnes LRX bullets. My load is 44.6 grains of imr 4350. My elevation is 4222 and the temp was around 85 degrees. I was getting readings right around 2900 fps. Does that seem reasonable for this load? Judging from the sierra manual THEIR 120 grain bullets should get about 2900 with that load. I just haven't used a chronograph before and I am trying to work out my drops etc. and I want to make sure I am using it right.


Thanks for your help.
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  •   #2  
    Unread 06-30-2013, 09:12 AM
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    Re: 6.5x284 LRH Barnes 127 Grain LRX?

    Never used that powder, but here is my load for the 127.

    6.5-284 Lapua Brass
    50.0 grains of H4350
    127 LRX jumping .030"
    29" Rock Creek barrel
    MV= 3140 fps over chrony and verified with dope.

    They make for a devastating hunting round.

    Just be careful, as this load is very close to MAX pressure in my rifle.
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      #3  
    Unread 06-30-2013, 10:22 AM
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    Re: 6.5x284 LRH Barnes 127 Grain LRX?

    Thanks for the help. Sounds interesting.
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      #4  
    Unread 06-30-2013, 07:21 PM
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    Re: 6.5x284 LRH Barnes 127 Grain LRX?

    Seems like you should get more velocity. However if you have great accuracy and consistent mv then just leave it alone.
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      #5  
    Unread 06-30-2013, 07:42 PM
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    Re: 6.5x284 LRH Barnes 127 Grain LRX?

    I tried it again today. I got 2900 fps again with 44.6 grains of 4350 and 3175 with 48.5 grains. This time the I could tell when the chrono was messing up I think. There was a really big difference in a couple shots. A couple shots were high or low by around a thousand feet per second, so I think the light or wind is messing with the machine some. I did weigh out every load.
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      #6  
    Unread 07-01-2013, 09:24 PM
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    Re: 6.5x284 LRH Barnes 127 Grain LRX?

    That seems in the ballpark to me. Same bullet, same rifle at 6600 ft I was reading just over 3k with 48.0 grains of IMR4350, Lapua brass, GM210M primers.
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      #7  
    Unread 07-02-2013, 05:52 PM
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    Re: 6.5x284 LRH Barnes 127 Grain LRX?

    That is nice to know. Thanks!
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