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208 A-Max in 300 RUM

 
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  #8  
Old 10-24-2009, 10:10 AM
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Re: 208 A-Max in 300 RUM

One thing I have not thought about is the twist rate for the 208 A-Max, or the 210 Bergers. Will a 1-10 twist be OK?
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  #9  
Old 10-24-2009, 11:35 AM
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Re: 208 A-Max in 300 RUM

That's probably pushing it about as far as you can but i think you will be alright because you can get by with a little less twist with higher velocity. I had an ultra with an 11 twist and i didn't use vld's but shot 220 spitzers just fine because of the high velocity.......rich
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  #10  
Old 10-24-2009, 01:45 PM
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Re: 208 A-Max in 300 RUM

I just ordered a box of 100 .308 cal 210 Berger's to test in the 300 RUM. I hope they work.
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only because rough men stand ready
to do violence on their behalf." -- George Orwell --

Rest easy, sleep well my brothers.
Know the line has held, your job is done.
Rest easy, sleep well.
Others have taken up where you fell, the line has held.
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  #11  
Old 10-24-2009, 02:46 PM
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Re: 208 A-Max in 300 RUM

I use the 210 bergers out of my sendero 300 rum with 92 grains of retumbo with great results
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  #12  
Old 10-24-2009, 02:53 PM
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Re: 208 A-Max in 300 RUM

Krakkon

What velocity are you getting with the 210's?
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"People sleep peaceably in their beds at night
only because rough men stand ready
to do violence on their behalf." -- George Orwell --

Rest easy, sleep well my brothers.
Know the line has held, your job is done.
Rest easy, sleep well.
Others have taken up where you fell, the line has held.
Peace, peace, and farewell... --Unknown--

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  #13  
Old 10-24-2009, 03:08 PM
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Re: 208 A-Max in 300 RUM

running at 3000 fps
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  #14  
Old 10-24-2009, 10:02 PM
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Re: 208 A-Max in 300 RUM

Quote:
Originally Posted by Cordell View Post
One thing I have not thought about is the twist rate for the 208 A-Max, or the 210 Bergers. Will a 1-10 twist be OK?
Cordell, 1 in 10 will be just fine. Berger recommends at least 1 in 11 for the 210s. My 300 Wby is 1 in 10, velocity is 2,960fps out of a 27" lilja and it is 1/2 moa. I would expect your ultra could push a good 100fps faster than this depending on your barrel length and load. Maybe some of the other guys on here will comment on their 300 ultra velocities.
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