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Twist rate/MV question with 105 Amax's, VLD's, 107 SMK's

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  #1  
Unread 12-09-2013, 04:21 PM
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Twist rate/MV question with 105 Amax's, VLD's, 107 SMK's

Looking at building an 8 twist 6-06 and have been reading about the long target bullets coming apart before they hit the target due to excessive velocity/rpm. I was hoping for 3300-3400 fps with the AMAX or VLD, but am now second guessing my build as I don't want to deal with these kind of issues.

Anyone have any real experience with the target bullets at higher velocities and twist rates?
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  •   #2  
    Unread 12-09-2013, 04:41 PM
    B23 B23 is offline
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    Re: Twist rate/MV question with 105 Amax's, VLD's, 107 SMK's

    My dad is shooting the Berger 105 Hybrid Target out of his 6-06Ack.Imp. it has a Broughton 1-8 5c barrel and they shoot very well in it. He's not pushing them as hard as he could but if I recall they are launching right around 3450-3500fps.

    He first tried the Berger 115's but found the 105 Hybrid Target shot better.
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      #3  
    Unread 12-10-2013, 10:35 AM
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    Re: Twist rate/MV question with 105 Amax's, VLD's, 107 SMK's

    I know some that have 6.5 hot rods, have said they have prob's with the 130-140 bergers on impact at closer ranges. Haven't heard of any coming apart befor impact though.
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    Unread 12-10-2013, 10:59 AM
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    Re: Twist rate/MV question with 105 Amax's, VLD's, 107 SMK's

    Quote:
    Originally Posted by MOJO67 View Post
    Looking at building an 8 twist 6-06 and have been reading about the long target bullets coming apart before they hit the target due to excessive velocity/rpm. I was hoping for 3300-3400 fps with the AMAX or VLD, but am now second guessing my build as I don't want to deal with these kind of issues.

    Anyone have any real experience with the target bullets at higher velocities and twist rates?

    I'd call Hornady, Berger etc and ask them directly about the max FPS/RPM limits on these 6mm bullets in question. I know that some of the guys I shoot with that run hot 6s have said that they've witnessed & had jacket separation around 3300 fps before on the bergers. So its def something worth checking on before you commit to building.

    Last edited by Hunter2678; 12-10-2013 at 01:41 PM.
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      #5  
    Unread 12-10-2013, 07:54 PM
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    Re: Twist rate/MV question with 105 Amax's, VLD's, 107 SMK's

    Not to hijack, but I'm soooo torn on this exact build and I can't find a reason not to do the 6-06 vs doing the 6mm Rem AI.

    Its on a long action Win M70 so I've got the action length to make the 6-06 work just fine and dandy. Why would I want to go with the 6mm Rem AI?
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      #6  
    Unread 12-10-2013, 09:51 PM
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    Re: Twist rate/MV question with 105 Amax's, VLD's, 107 SMK's

    Quote:
    Originally Posted by Hunter2678 View Post
    I'd call Hornady, Berger etc and ask them directly about the max FPS/RPM limits on these 6mm bullets in question. I know that some of the guys I shoot with that run hot 6s have said that they've witnessed & had jacket separation around 3300 fps before on the bergers. So its def something worth checking on before you commit to building.
    I've been trying, but it's impossible to get through. Constant busy signal.
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      #7  
    Unread 12-11-2013, 08:09 AM
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    Re: Twist rate/MV question with 105 Amax's, VLD's, 107 SMK's

    Quote:
    Originally Posted by c_bass16 View Post
    Not to hijack, but I'm soooo torn on this exact build and I can't find a reason not to do the 6-06 vs doing the 6mm Rem AI.

    Its on a long action Win M70 so I've got the action length to make the 6-06 work just fine and dandy. Why would I want to go with the 6mm Rem AI?
    Well with the 6-06 you have more case prep than the 6mm AI, you would need to neck down the 6-06, and both would need fire formed, so would be saving a couple steps in the necking process.
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