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(HAT) Henson Aluminum Tipped Bullet 338 Rum Test

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  #29  
Unread 01-28-2010, 11:02 PM
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Re: (HAT) Henson Aluminum Tipped Bullet 338 Rum Test

jmason,
Good one, couldnt agree more, LOL
  •   #30  
    Unread 01-29-2010, 01:24 AM
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    Re: (HAT) Henson Aluminum Tipped Bullet 338 Rum Test

    Quote:
    Quote:
    Originally Posted by elkregulator View Post
    Mark, I don't have them in front of me, but is I remember correctly the 265 HAT's are 1.77" and the 300 SMK's are 1.7".
    Thanks,

    I've got this report that Bryan posted about a year ago. In it he fleshes out the ballisitc merits of the 265 HAT very well. It's a very good read. The 265 HAT is 1.785" long. Not a whole lot longer than the 300 SMK which is also 36.5 gr heavier.

    http://www.appliedballisticsllc.com/...ATS_Report.pdf

    Lets look at another 267 gr .338 cal bullet with a .9 BC It's average G1 BC is actuallty about .8 from 3000-1200 fps. It is a lot longer and has a lot longer nose than the HAT 265

    http://www.appliedballisticsllc.com/...ATS_Report.pdf

    If you compare the HAT with the GS bullet, you'll see there is a big difference.

      #31  
    Unread 01-29-2010, 01:06 PM
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    Re: (HAT) Henson Aluminum Tipped Bullet 338 Rum Test

    I find this subject very interesting and have a question about overal group size ?
    Lets say you have an overall group size of .394" and the bullet diameter of .284 so you minus the diameter of the bullet to get the overall group measurement? I too shoot the 300grn. SMK and get .5 " groups all day long but if I minus the .338 bullet diameter that would be a group size of .162" ?

    Thank you.

      #32  
    Unread 01-29-2010, 02:52 PM
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    Re: (HAT) Henson Aluminum Tipped Bullet 338 Rum Test

    Quote:
    Originally Posted by Forrest Ebert View Post
    I find this subject very interesting and have a question about overal group size ?
    Lets say you have an overall group size of .394" and the bullet diameter of .284 so you minus the diameter of the bullet to get the overall group measurement? I too shoot the 300grn. SMK and get .5 " groups all day long but if I minus the .338 bullet diameter that would be a group size of .162" ?

    Thank you.

    What i read and do is subtract the diameter of the hole the bullet makes in the paper. For my 308 with 178 a-maxs that's around 0.24" from what I remember.
      #33  
    Unread 01-29-2010, 03:07 PM
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    Re: (HAT) Henson Aluminum Tipped Bullet 338 Rum Test

    Download On Target free software:

    OnTarget Software

    Since it draws a bullet hole the correct size it is easy to calculate group size..edge.
      #34  
    Unread 01-29-2010, 03:10 PM
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    Re: (HAT) Henson Aluminum Tipped Bullet 338 Rum Test

    Quote:
    Quote:
    Originally Posted by Forrest Ebert View Post
    I find this subject very interesting and have a question about overal group size ?
    Lets say you have an overall group size of .394" and the bullet diameter of .284 so you minus the diameter of the bullet to get the overall group measurement? I too shoot the 300grn. SMK and get .5 " groups all day long but if I minus the .338 bullet diameter that would be a group size of .162" ?

    Thank you.

    What most do if you want to get as accurates as possible, is to measure the outside edges of the two farthest holes in the group and then subtract the cal diameter of the bullet. Or you can just guesstimate the center to center of the holes.
      #35  
    Unread 01-29-2010, 06:00 PM
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    Re: (HAT) Henson Aluminum Tipped Bullet 338 Rum Test

    I just go center to center of each hole...gets me close enough.
    The thread is closed

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