Help support WeTheArmed.com by visiting our sponsors.

Author Topic: 1951 Ideal Loading Manual #38  (Read 3724 times)

RMc

  • Senior Contributor
  • *****
  • Posts: 2230

  • Offline
1951 Ideal Loading Manual #38
« on: June 05, 2014, 09:34:44 pm »
Quite an interesting reading journey back to the reloading technology of 63 years ago.

The shotshell section gave loading data for Dupont Bulk Smokeless powder in Dram measurment. 
Shotshell data for familiar powders like RED Dot were given in grains. 

All hulls shown were paper and roll crimped. Data included instructions on how to fit the fiber and card wading to the hull/load. No specific hull or primer were recommended, with the exception of avoiding High Base (not the same as high brass), hulls when using Bulk powders.  The use High base hulls were recommended with High Density powders like Red Dot to reduced the wad column stack needed to fit the load to low base hulls.


http://www.castpics.net/LoadData/OM/IdealHandbook38.pdf
Alabama

WeTheArmed.com

  • Advertisement
  • ***

    Nightcrawler

    • WTA Secretary of Defense
    • Senior Contributor
    • *****
    • Posts: 6280
    • That's what SHE said!

    • Offline
    Re: 1951 Ideal Loading Manual #38
    « Reply #1 on: June 06, 2014, 01:44:43 am »
    So how did they figure muzzle velocity before the chronograph was invented?


    Generated via the Nightcrawler AI v4.600
    ArizonaMOLON LABE

    Retired Bomb Guy
    Semi-Pro Hack Writer

    RMc

    • Senior Contributor
    • *****
    • Posts: 2230

    • Offline
    Re: 1951 Ideal Loading Manual #38
    « Reply #2 on: June 06, 2014, 12:56:02 pm »
    So how did they figure muzzle velocity before the chronograph was invented?

    The earliest reliable method was the ballistic pendulum.  Here is a reasonably short explanation:

    http://firearmshistory.blogspot.com/2011/01/testing-firearms-measuring-bullet_14.html
    Alabama

    RMc

    • Senior Contributor
    • *****
    • Posts: 2230

    • Offline
    Re: 1951 Ideal Loading Manual #38
    « Reply #3 on: June 06, 2014, 01:50:48 pm »
    Due to the limitations of early mechanical chronographs, Pre-WWII shotshell velocity was recorded as the average velocity over 40 yards.

    In  pre-WWII Winchester catalogs,  "3 dram equivalent" trap load, (#7 1/2 shot), velocity was listed at 850 fps.  With the coming of electronic chronographs, manufacturer advertising circulars began listing the "muzzle" velocity of trap loads at 1200 fps.
    Alabama

    JesseL

    • Gun Mangler
    • WTA Staff
    • Senior Contributor
    • *****
    • Posts: 12451

    • Offline
    Re: 1951 Ideal Loading Manual #38
    « Reply #4 on: June 06, 2014, 02:05:48 pm »
    So how did they figure muzzle velocity before the chronograph was invented?

    I've got a chronograph that probably dates to about that time.



    It used wire screens that each had a single continuous wire looping back and forth through it, so that it could detect when a bullet had cut the wire. The screens had to be set up something like 10 yards apart, and the measurement was read out in binary coded decimal with incandescent lights.
    Arizona

    RMc

    • Senior Contributor
    • *****
    • Posts: 2230

    • Offline
    Re: 1951 Ideal Loading Manual #38
    « Reply #5 on: December 04, 2020, 06:34:24 pm »
    Alabama

    cpaspr

    • Senior Contributor
    • *****
    • Posts: 2265

    • Offline
    Re: 1951 Ideal Loading Manual #38
    « Reply #6 on: December 05, 2020, 01:49:57 pm »
    Thank you for updating the link.

    I recently came into possession of my father's copy of that booklet, but it is missing the first few pages.  I've been meaning to look to see if I could find a copy online.  Now I don't need to, and can leave it safely in the envelope he stored it in.

    Oregon

    Help support WeTheArmed.com by visiting our sponsors.