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IMR 4064 in 7mm rem mag ????

 
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  #1  
Old 12-14-2011, 08:10 PM
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IMR 4064 in 7mm rem mag ????

I just bought a 7mm rem mag with a 9.5 twist. I have been trying to figure out what powder to buy and it seems most use H1000 or retumbo. I was looking thru a reloading book and noticed that IMR 4064 comes up in quite a few columns/bullet weights. I was excited to see this because I have six lbs for my .243. Has anyone used this in a 7mm or is there a reason I shouldn't? Thanks. Also will Berger 168 gr be ok with that twist?
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Old 12-14-2011, 08:14 PM
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Re: IMR 4064 in 7mm rem mag ????

I've used just about every powder in the 7rm over the last 30+ years. RL22 behind a 160gr Accubond has worked VERY well in the last 3 rifles I've worked up loads for. Load it to around 3000fps or a touch more, if it won't shoot, something else is wrong.

AJ
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Old 12-15-2011, 10:31 AM
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Re: IMR 4064 in 7mm rem mag ????

4064 is too fast.......much better choices.....

Think slow & fill up the case.......

H4831....RE22....VV160...RE19....H4350

to name a few......
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Old 12-15-2011, 06:52 PM
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Re: IMR 4064 in 7mm rem mag ????

H4831 for the 7. varget or I4064 for the .243
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Old 12-15-2011, 07:26 PM
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Re: IMR 4064 in 7mm rem mag ????

I am also a fan of the H4831 in the 7mm Rem Mag. The powder seems to be ideal for the 168s
in the 7 RM. Also the 4831 SC should work well.

Any of the new powders that have close to the same burn rate should work.

4064 Is a great powder for the 120s and 140 gr bullets but is a little fast for the bigger bullets.

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Old 12-16-2011, 08:55 AM
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Re: IMR 4064 in 7mm rem mag ????

Quote:
Originally Posted by chad44 View Post
I just bought a 7mm rem mag with a 9.5 twist. I have been trying to figure out what powder to buy and it seems most use H1000 or retumbo. I was looking thru a reloading book and noticed that IMR 4064 comes up in quite a few columns/bullet weights. I was excited to see this because I have six lbs for my .243. Has anyone used this in a 7mm or is there a reason I shouldn't? Thanks. Also will Berger 168 gr be ok with that twist?
4064 is too fast, even with light bullets. Since you are going to have to buy some powder, buy H1000. According to Berger, a 9.5 should be good. They say that bullet needs a 10 or faster twist.
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  #7  
Old 12-26-2011, 09:35 PM
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Re: IMR 4064 in 7mm rem mag ????

If you want to use an IMR powder, try 7828 or 7828ssc. I've used this behind a 150 NBT and a 160 Accubond with sub MOA results in both
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