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6.5x284 LRH Barnes 127 Grain LRX?

 
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  #1  
Old 06-29-2013, 08:00 PM
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Location: Yoder, WY
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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  
Old 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  
Old 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  
Old 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  
Old 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  
Old 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  
Old 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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