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Reloading Techniques For Reloading


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257 weatherby

 
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  #1  
Old 01-01-2014, 06:15 PM
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257 weatherby

I am wanting to try 100 grain tsx in my rifle with h1000 but can not find any info on the combination there is a lot of guys saying they use it but not giving up their data. Barnes only lists 2 powders on their site. thanks
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Old 01-01-2014, 08:32 PM
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Re: 257 weatherby

The only data I could find for 100 grain bullets and H1000 is for cup/core bullets and it lists a Min charge of 73 grains and Max charge of 78 grains. I am not endorsing this data and you are free to do what you wish, but if I were doing the loading I would use it. H1000 is a very slow burning propellant ( not fickle like some faster burners) and I really don't think you would have any trouble if you start low and work up.
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Old 01-01-2014, 10:19 PM
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Re: 257 weatherby

IMHO H1000 is too slow. IMR7828 is a much better choice.

but if that's what you have...
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Old 01-02-2014, 12:42 PM
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Re: 257 weatherby

If you e-mail Barnes' customer service they will send you a pdf with several more powders listed.
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Old 01-02-2014, 05:55 PM
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Re: 257 weatherby

Barnes #4 H1000

start 70.5 Max 75.5
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Old 01-02-2014, 06:19 PM
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Re: 257 weatherby

With a 100 gr Hornady my manual is showing 72.5 gr max of H1000 for 3400 FPS..??
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Old 01-02-2014, 08:36 PM
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Re: 257 weatherby

I messed around with my two 257's- a rem 700 and vanguard Submoa model. I found that 72 gr of IMR7828 and RL 22 was the best with the 100tsx at 3.19 OAL.. 22 in the 700 and 7828 in the wby. I tried H1000 it wasn't as good. Wby brass, Fed 215M, Barnes 100 TSX.
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