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338 win mag (US 869)

 
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  #1  
Old 09-14-2013, 11:14 PM
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Location: Las Cruces, NM
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338 win mag (US 869)

I have 5# of US 869 and Im been looking for a load with this powder. Im loading Barnes TSX 285gr Boattail and Hornady SST 225gr. Please Help Me
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  #2  
Old 09-14-2013, 11:27 PM
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Re: 338 win mag (US 869)

You are barking up the wrong tree on this one. That powder is WAAAAAAAAAAY TOO SLOW to work in the .338 Win Mag, which does its best work with powders more appropriate to the 30-06.

Unless you are loading for a .50 BMG or a smaller chambering that is HUGELY overbore, US869 isn't going to work. It is just about the slowest powder in existence:

Burn Rate


Your best bet is to sell it to a .50 cal shooter or try to trade it for a couple pounds of H4350, H4831, or RL-19.
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  #3  
Old 09-14-2013, 11:34 PM
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Re: 338 win mag (US 869)

I also have Viht N160 would that be a good powder
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  #4  
Old 09-15-2013, 12:14 AM
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Re: 338 win mag (US 869)

VV N160 is comparable to H4831, so it should work just fine. Reloading data can be found here:

Products - Lapua
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  #5  
Old 09-15-2013, 09:53 AM
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Re: 338 win mag (US 869)

Thank you that was a big help
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  #6  
Old 09-15-2013, 12:36 PM
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Re: 338 win mag (US 869)

Glad I could help. Good luck with your load development!
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  #7  
Old 09-24-2013, 06:19 PM
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Re: 338 win mag (US 869)

I pick up some H380 will that be a good powder
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