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7mm WSM Powder Recomendation

 
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  #1  
Old 10-06-2012, 09:35 AM
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Join Date: Dec 2011
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7mm WSM Powder Recomendation

Gents,

Just started with a new model 70. I want to shoot Horandy 162 SSTs. Can you guys give me a powder recommendation? I've experimented a little with RL-17 and I really don't have enough time behind the gun to form a great opinion. I've worked up to 60 grains and i'm seeing the string average around 3100. Accuracy seems fine for the first 3 shots. The groups did open up after that but i suspect the sporter barrel on this extreme weather is the reason. After doing some research it seems a lot of folks think that RL17 isn't the best powder for this cartridge. I'm looking for a few recommendations.
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  #2  
Old 10-06-2012, 01:04 PM
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Join Date: Jun 2010
Location: greenwood, IN
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Re: 7mm WSM Powder Recomendation

Quote:
Originally Posted by tm7554 View Post
Gents,

Just started with a new model 70. I want to shoot Horandy 162 SSTs. Can you guys give me a powder recommendation? I've experimented a little with RL-17 and I really don't have enough time behind the gun to form a great opinion. I've worked up to 60 grains and i'm seeing the string average around 3100. Accuracy seems fine for the first 3 shots. The groups did open up after that but i suspect the sporter barrel on this extreme weather is the reason. After doing some research it seems a lot of folks think that RL17 isn't the best powder for this cartridge. I'm looking for a few recommendations.
try MagPro
gary
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  #3  
Old 10-06-2012, 01:25 PM
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Join Date: Mar 2011
Location: Florida
Posts: 285
Re: 7mm WSM Powder Recomendation

Mine liked H4831SC
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  #4  
Old 10-07-2012, 12:12 PM
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Join Date: Jan 2011
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Re: 7mm WSM Powder Recomendation

With 168gr pills mine liked IMR7828ssc.
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  #5  
Old 10-08-2012, 11:34 AM
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Join Date: Apr 2007
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Re: 7mm WSM Powder Recomendation

Rl 22
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  #6  
Old 10-08-2012, 02:36 PM
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Join Date: Mar 2004
Location: Las Vegas, NV
Posts: 551
Re: 7mm WSM Powder Recomendation

For the Heavies (180 Berger) I have run everything from RL-25, Retumbo, H1000, and H4831. For the lighter pills, I have seen folks use H4831SC, RL-22, RL-19.

JeffVN
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  #7  
Old 10-08-2012, 06:00 PM
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Join Date: Nov 2009
Location: North Dakota
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Re: 7mm WSM Powder Recomendation

I have a build finishing up in a week or so and will start out with H1000 and Retumbo with 168 grain Bergers.
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