6.5x284 LRH Barnes 127 Grain LRX?

Discussion in 'The Basics, Starting Out' started by muley, Jun 29, 2013.

  1. muley

    muley Well-Known Member

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    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.
     
  2. santee116

    santee116 Well-Known Member

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    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.
     

  3. muley

    muley Well-Known Member

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    Thanks for the help. Sounds interesting.
     
  4. loaders_loft

    loaders_loft Well-Known Member

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    Seems like you should get more velocity. However if you have great accuracy and consistent mv then just leave it alone.
     
  5. muley

    muley Well-Known Member

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    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.
     
  6. cornstalker

    cornstalker Well-Known Member

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    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.
     
  7. muley

    muley Well-Known Member

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    That is nice to know. Thanks!