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6.5-284 140 Berger?

 
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  #1  
Old 08-29-2010, 12:03 PM
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Location: Silver City NM
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6.5-284 140 Berger?

What would be the ideal chamber for a 140 grain Berger in 6.5-284. I'm looking for reamer dimensions. Thanks

I know, I know it's not a .30 cal but hey it's not a 7 Em Em either .
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Old 08-29-2010, 01:21 PM
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Re: 6.5-284 140 Berger?

I shoot The Bergers in my custom 6.5 Sherman and can give you some dimensions that have worked well in my application. I can push the 140's at 3200' but cases last a lot better at 3150'. This is with only a 26" barrel. I would recommend a .293" neck, then turn your brass to .013" thickness. This will give you .0015" per side for expansion.Throat and lead dimension is .2645" and is .160 and .174 long . The angle is 1 1/2 degree. I have a .300 neck length which is a little better than the 284 case. PM me if you want more info.......Rich
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Old 08-29-2010, 03:17 PM
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Re: 6.5-284 140 Berger?

PTG built mine with 0.177 freebore for 140 bergers
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Old 08-29-2010, 05:26 PM
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Re: 6.5-284 140 Berger?

Quote:
Originally Posted by elkaholic View Post
I shoot The Bergers in my custom 6.5 Sherman and can give you some dimensions that have worked well in my application. I can push the 140's at 3200' but cases last a lot better at 3150'. This is with only a 26" barrel. I would recommend a .293" neck, then turn your brass to .013" thickness. This will give you .0015" per side for expansion.Throat and lead dimension is .2645" and is .160 and .174 long . The angle is 1 1/2 degree. I have a .300 neck length which is a little better than the 284 case. PM me if you want more info.......Rich
I realize that my .160, .174 dimensions were confusing. The freebore is .174.....Rich
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