Help support WeTheArmed.com by visiting our sponsors.

Author Topic: Patented Buckshot Pattern Stacking Pattern - Really...  (Read 4006 times)

RMc

  • Senior Contributor
  • *****
  • Posts: 2238

  • Offline
Patented Buckshot Pattern Stacking Pattern - Really...
« on: March 23, 2015, 10:15:59 pm »
...back in the 1980's Federal actually patented a specific way of stacking buckshot pellets in shotshells to get better patterns.  This resulted in the Federal Premium line of buckshot with "Spiral Stacking."

The new Premium Buckshot ammo was advertised on highway billboards through out the South as well as in magazine style "Adverzines" sold from grocery store magazine racks in the 1980's. 


http://www.google.com/patents/US4679505
« Last Edit: March 23, 2015, 10:27:26 pm by RMc »
Alabama

WeTheArmed.com

  • Advertisement
  • ***

    coelacanth

    • Senior Contributor
    • *****
    • Posts: 10233
    • eccentric orbit

    • Offline
    Re: Patented Buckshot Pattern Stacking Pattern - Really...
    « Reply #1 on: March 23, 2015, 10:34:33 pm »
    That was a lengthy article.  Evidently the technique was not up to the results of the Flite-Control wad.
    Arizona" A republic, if you can keep it."

                                                   Benjamin Franklin

    RMc

    • Senior Contributor
    • *****
    • Posts: 2238

    • Offline
    Re: Patented Buckshot Pattern Stacking Pattern - Really...
    « Reply #2 on: March 23, 2015, 11:05:41 pm »
    That was a lengthy article.  Evidently the technique was not up to the results of the Flite-Control wad.

    The Buckshot loads in question, predated the Flite-Control wad concept by about 15 years and are still available in the Federal Premium product line.  In addition Federal 00B Flite-Control rounds also use the "Spiral Pellet Stacking" pattern.

    Click on the Images in the patent for the concept in a nutshell. 

    Essentially - stacking the pellets in a slightly offset pattern allowed the large pellets to shift and flow rather than compress when passing through choke constriction.
    « Last Edit: March 24, 2015, 12:21:01 am by RMc »
    Alabama

    coelacanth

    • Senior Contributor
    • *****
    • Posts: 10233
    • eccentric orbit

    • Offline
    Re: Patented Buckshot Pattern Stacking Pattern - Really...
    « Reply #3 on: March 24, 2015, 12:45:49 am »
    Yeah, I got that part but it seems that a tight constriction like full choke would still disrupt your patterning as the "spiralled" shot column reacted by lengthening as it went through.   :shrug
    Arizona" A republic, if you can keep it."

                                                   Benjamin Franklin

    RMc

    • Senior Contributor
    • *****
    • Posts: 2238

    • Offline
    Re: Patented Buckshot Pattern Stacking Pattern - Really...
    « Reply #4 on: March 24, 2015, 02:25:22 am »
    Yeah, I got that part but it seems that a tight constriction like full choke would still disrupt your patterning as the "spiralled" shot column reacted by lengthening as it went through.   :shrug

    I recall pattern testing a Remington 1100 with a fixed full choke some years ago.  With "regular" Federal 2.75" short mag 00B that long smoothbore threw a "doughnut" pattern at 25 yards.  The then new  Federal Premium short magnum 00B put all 12 pellets just under 10 inches at the same distance!  I was shocked at the difference - which is why I remember it so well.   

    Alabama

    coelacanth

    • Senior Contributor
    • *****
    • Posts: 10233
    • eccentric orbit

    • Offline
    Re: Patented Buckshot Pattern Stacking Pattern - Really...
    « Reply #5 on: March 25, 2015, 10:23:44 pm »
    Ok.  I could be wrong.    :shrug   
    Arizona" A republic, if you can keep it."

                                                   Benjamin Franklin

    RMc

    • Senior Contributor
    • *****
    • Posts: 2238

    • Offline
    Re: Patented Buckshot Pattern Stacking Pattern - Really...
    « Reply #6 on: March 26, 2015, 12:41:08 am »
    Ok.  I could be wrong.    :shrug   

    Well, my reference Federal 1980's "adverzine" has comparative stop action photos of buckshot pellets in flight that indeed show somewhat longer but narrower shot strings for Premium loads of spiral stacked buckshot.  But, tighter patterns for the Premium loads nonetheless.
    Alabama

    GeorgeHill

    • Co-Founder
    • WTA Staff
    • Senior Contributor
    • *****
    • Posts: 22121
    • The Ogre
      • MadOgre.com

    • Offline
    Re: Patented Buckshot Pattern Stacking Pattern - Really...
    « Reply #7 on: March 26, 2015, 07:24:25 am »
    Federal has always taken their Shotgun Ammunition very seriously... they actually take time really R&D things.  Too few do.  Winchester seems to go for the gimmick.
    South CarolinaCo-Founder of WeTheArmed.com
    The Ogre from MadOgre.com.

    Vires et Honestas
    Malo periculosam, libertatem quam quietam servitutem.
    http://www.madogre.com/

    RMc

    • Senior Contributor
    • *****
    • Posts: 2238

    • Offline
    Re: Patented Buckshot Pattern Stacking Pattern - Really...
    « Reply #8 on: March 30, 2015, 05:00:31 pm »
    Federal has always taken their Shotgun Ammunition very seriously... they actually take time really R&D things.

    Indeed so!  Roughly, Federal's buckshot load progression:

    -Late 1960's: Plastic hull, roll crimp & plastic O/S wad
    -1970's: Fold crimp & buffer..
    -Early 1980's: Buffer & shotcup.  (Current "Power-Shok")
    -Middle 1980's: Premium Buckshot, copper plated pellets, long shotcup, "Spiral Stacked" pellets.
    -Early 2000's :  Premium Buckshot with Flite Control rear braking wad system.

    This patent for a Forward Weighted version of the Flite-Control Wad may portend some interesting future developments:

    http://www.google.com/patents/US20130228090

    « Last Edit: March 30, 2015, 05:10:35 pm by RMc »
    Alabama

    coelacanth

    • Senior Contributor
    • *****
    • Posts: 10233
    • eccentric orbit

    • Offline
    Re: Patented Buckshot Pattern Stacking Pattern - Really...
    « Reply #9 on: April 02, 2015, 03:52:09 am »
     :hmm   So, its a one piece wad but has material added to the front end to increase weight there.   Interesting.   
    Arizona" A republic, if you can keep it."

                                                   Benjamin Franklin

    Help support WeTheArmed.com by visiting our sponsors.