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Rifles, Bullets, Barrels & Ballistics Applied Ballistics

View Poll Results: Favorite 6.5 Cartridge
264 Win Mag 70 11.74%
264 Rem Mag 4 0.67%
65. STW 4 0.67%
6.5-284 131 21.98%
6.5 WSM 25 4.19%
6.5 SAUM 20 3.36%
6.5 Rem 59 9.90%
6.5-47 Lapaua 50 8.39%
6.5-06 45 7.55%
Other 188 31.54%
Voters: 596. You may not vote on this poll

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Favorite 6.5 Cartridge

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  #204  
Unread 02-28-2013, 07:58 PM
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Join Date: Nov 2005
Posts: 56
Re: Favorite 6.5 Cartridge

My vote goes to 260 Ack Imp.
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  •   #205  
    Unread 03-01-2013, 01:28 PM
    Gold Member
     
    Join Date: Nov 2012
    Location: Copper Basin, Alaska
    Posts: 838
    Re: Favorite 6.5 Cartridge

    Has anyone tried H100v in the Creed? I chronyed some loads yesterday with the 140 SST 42 gr gave me over 3000 fps. That's .8gr under Max Hornady book.
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      #206  
    Unread 03-01-2013, 01:48 PM
    Silver Member
     
    Join Date: Jan 2009
    Location: Cleburne,Texas
    Posts: 150
    Re: Favorite 6.5 Cartridge

    Wonderful but: Barrel length? temp? PA? moly? hBN-TBN?
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      #207  
    Unread 03-01-2013, 02:03 PM
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    Join Date: Nov 2012
    Location: Copper Basin, Alaska
    Posts: 838
    Re: Favorite 6.5 Cartridge

    26" factory Ruger. Stainless . Temp +4F rifle and ammo temp approx 60F . Uncoated bullets. Distance to chrony 15' . Fire formed 22/250 Winchester brass . Primers flat but not flowing..

    I feel this is over Max and will reduce by 1 gr. My group was approx 1.5" at300 yards. But I wasn't set up for accurate shooting, used an empty gallon oil jug for a rest on the bench.
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      #208  
    Unread 03-01-2013, 02:05 PM
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    Join Date: Nov 2012
    Location: Copper Basin, Alaska
    Posts: 838
    Re: Favorite 6.5 Cartridge

    What is hBN and TBN?
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      #209  
    Unread 03-01-2013, 07:21 PM
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    Join Date: Nov 2007
    Location: Near Mt Rainier
    Posts: 298
    Re: Favorite 6.5 Cartridge

    HBN is hexagonal (crystal shape) Boron Nitride which is a dry lubricant many of us use. It is considered by many better than Molybdenum for bullets. HBN generates less pressure at the rifling, because of lower engraving resistance. so you can build gentle pressure further into the barrel and more speed. It also reduces copper fouling. I find that the first shot in a clean barrel is part of the group and Ihunt with a clean barrel. HBN is applied by tumbling the bullets with steel shot like moly.Favorite 6.5 Cartridge-p1010973.jpg
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      #210  
    Unread 03-01-2013, 11:35 PM
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    Join Date: Jan 2009
    Location: Cleburne,Texas
    Posts: 150
    Re: Favorite 6.5 Cartridge

    TBN is a 10 years of research proprietary formula for Boron-nitride coating by Tubb as in David Tubb one of our national shooting treasures here in Texas. go to
    Boron Nitride Coating Bullets - David Tubb
    NO WAX required / Not as messy to handle / less deformation during obturation / lower peak pressures
    I have also had good luck with the Tubb Fire Lapping bullets on production barrels...lapp the throat too, not just the bore
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