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300 Win Mag Powder

 
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  #1  
Old 08-23-2010, 10:02 PM
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300 Win Mag Powder

Well I am now back on track with my load development, thanks to everyone that helped me out with the case shoulder questions, and I was woundering what is your guys favorite powder for a 300 Win Mag with a 190gr Burger. I am using H4831sc, and wanted everyones opinion on this power, and others. I am shooting a Rem 700 and so far my rifle is liking 68.5gr.
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Old 08-24-2010, 01:37 AM
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Re: 300 Win Mag Powder

Im a big fan of 4831 but I think the original works better than the short cut in a 300wm. My theory is that it has something to do with the extra room in the case.
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Old 08-24-2010, 05:34 AM
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Re: 300 Win Mag Powder

H4831SC is for sure a good powder. I've used it in several different calibers and results vary but accuracy has always been good. I have enjoyed great accuracy with IMR 4831 with the lighter bullets (150gn) in a previous .300WinMag Sendero that I owned.
With the current .300WinMag that I own, I have tried H4350, RL22, RL25 and most recently H1000. The 190gn SMK are producing sub-1/2" MOA at 500yds with this powder and CCI 250's and velocity is running 3145fps on average. JohnnyK.
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Old 08-24-2010, 07:57 AM
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Re: 300 Win Mag Powder

Shooting 200gr accubond 75gr Rl-25 submin, 200gr SMK or SGK @ 76.5 RL-25
Win brass and a 215M primers. Getting a submin with all three loads......
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Old 08-24-2010, 08:34 AM
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Re: 300 Win Mag Powder

I like H-1000 in my 300 Win Mag
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Old 08-24-2010, 01:41 PM
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Re: 300 Win Mag Powder

I have had a few others tell me to give the H-1000 a shot. Think I might give'er a go.
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Old 08-24-2010, 03:21 PM
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Re: 300 Win Mag Powder

My son and I both have 300 wins and shoot 210 bergers. Plus I have loaded for several other 300 wins. My favorite powder is H-1000. Just seems to fit the case like it was made for it and accuracy is great.

Jeff
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