close
Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Hunting > Long Range Hunting & Shooting

Long Range Hunting & Shooting Nightforce Optics

Reply

6mm-284vs 6mmAI

LinkBack Thread Tools Display Modes
  #1  
Unread 02-12-2014, 06:36 PM
Bronze Member
 
Join Date: Dec 2012
Posts: 84
6mm-284vs 6mmAI

Anyone have any pros and cons on either of these two rounds? I wanted to do one of these two for deer fun gun.
Reply With Quote
  •   #2  
    Unread 02-12-2014, 07:14 PM
    Silver Member
     
    Join Date: May 2010
    Location: Tendoy,ID
    Posts: 208
    Re: 6mm-284vs 6mmAI

    The 6mm AI doesn't gain much over the 6mm. There is a list of the % improvement over the parent cartridge for all cartridges that Ackley improved. Check it out. I have a list but don't know how to attach it here. I'll bet it is on the net. Therefore I would go with the 6x284.
    Reply With Quote

      #3  
    Unread 02-13-2014, 05:53 AM
    Platinum Member
     
    Join Date: Dec 2005
    Location: Tucson Az
    Posts: 2,018
    Re: 6mm-284vs 6mmAI

    I would think the 6mmAI will have a longer barrel life for two reasons: less powder longer neck.

    While you have to neck down either 284 win or 6.5-284 (my choice) to get a 6mm-284 you have to fireform the 6mmAI.

    A more pertinent question might be which brass is readily available? Same for dies.

    To my knowledge only Rem and Win make 6mm Rem brass. You could buy RWS or Norma 7 x 57 brass.

    The 6mm-284 can use win, norma or Lapua brass.
    Reply With Quote
      #4  
    Unread 02-13-2014, 06:06 AM
    Silver Member
     
    Join Date: Dec 2009
    Location: Michigan
    Posts: 253
    Re: 6mm-284vs 6mmAI

    I shoot a 6mm-284, 12 twist. All I can say is Wow is that thing flat shooting with very minimal recoil! I zero at 100 yards and it prints +2.5" at 200 yards then zeros again at 300 yards. I reshot this at the ranges just because I was amazed at the results.

    I would build a 6mm-284, easy cases to obtain, no fire forming, simple necking down and accurate.
    __________________
    Bob the nailer
    one ragged hole...the quest for accuracy continues.

    NRA Life member
    Varmint Hunter Association member
    American Gunsmith Association
    www.knowyourzero.com
    Reply With Quote
      #5  
    Unread 02-13-2014, 06:30 AM
    Platinum Member
     
    Join Date: Dec 2005
    Location: Tucson Az
    Posts: 2,018
    Re: 6mm-284vs 6mmAI

    I might as well admit I have THREE 6mm-284s. I began with a monster 20 lb heavy barreled rig twisted to shoot 115s. Ended up with 105 hybrids at 3445 fps.

    I owned the reamer and an old lathe. Decided to chamber and fit a 20" 243 rem takeoff to a Ruger M77, my first barrel job. That rifle shoots the 87 hornady at 3375 fps

    Then rechambered a 24" 243 on a SA Rem 700. It shoots the 95 gr Berger classic at 3350 fps.

    Those sporters are flat shooting: Ruger with 87 gr 1" at 100 4.6 low at 300
    Win with 95 .9 at 100 4.7 low at 300

    Must admit I love this chambering....
    Reply With Quote
      #6  
    Unread 02-13-2014, 07:58 AM
    Silver Member
     
    Join Date: Oct 2005
    Posts: 146
    Re: 6mm-284vs 6mmAI

    I went to my smith with the same question, He talked me into a 6 AI even though the 6.5 284 brass is better, I am glad he changed my mind! I run 52 gr. rel 19 with the 87gr. hor. honest 3660 no preasure at all. Even though I turn the necks to make them the same I can shoot factory ammo to get cases neck is .270 I use win. brass I do have a 28 inch barrel, also a brake so I can see my own hits
    Reply With Quote
      #7  
    Unread 02-13-2014, 08:03 AM
    Silver Member
     
    Join Date: Oct 2005
    Posts: 146
    Re: 6mm-284vs 6mmAI

    Forgot to mention, Richard Franklin, had a good write up about them on the 6BR fourm that is where I got my starting loads from. He was on the guns of the week!
    Reply With Quote
    Reply

    Bookmarks

    Thread Tools
    Display Modes



    All times are GMT -5. The time now is 04:39 PM.


    Powered by vBulletin ©2000 - 2017, Jelsoft Enterprises Ltd.
    Content Management Powered by vBadvanced CMPS
    All content ©2010-2015 Long Range Hunting, LLC