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Author Topic: Chrono results with Montana Gold 142gn .357 Projectiles  (Read 703 times)

NBC LT

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Chrono results with Montana Gold 142gn .357 Projectiles
« on: June 03, 2018, 05:05:32 pm »
I have chrono'ed these projectiles in both .38 (AA#2/W231) and .357 Mag (H110).  Anyone have a recipe to share, or anyone interested in my results?

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    NBC LT

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    Re: Chrono results with Montana Gold 142gn .357 Projectiles
    « Reply #1 on: June 16, 2018, 02:29:36 pm »
    Found this load data today to share, all shot from Smith & Wesson Model 19 revolver (~4 inch barrel), chronograph set at 1 meter from muzzle:
    Velocity   Bullet Weight   Bullet Man   Powder   Grains      
    561   142   MG-FMJ   W231   3.8   574.0   AVG
    581   142   MG-FMJ   W231   3.8   581.0   MED
    623   142   MG-FMJ   W231   3.8   36.9   STD
    593   142   MG-FMJ   W231   3.8   103.9   Energy (ft lbs)
    512   142   MG-FMJ   W231   3.8   140.8   Joules
                      
    592   142   MG-FMJ   W231   4   599.4   AVG
    689   142   MG-FMJ   W231   4   592.0   MED
    565   142   MG-FMJ   W231   4   47.4   STD
    596   142   MG-FMJ   W231   4   113.3   Energy (ft lbs)
    555   142   MG-FMJ   W231   4   153.6   Joules
                      
    629   142   MG-FMJ   W231   4.2   647.0   AVG
    612   142   MG-FMJ   W231   4.2   660.0   MED
    666   142   MG-FMJ   W231   4.2   22.4   STD
    660   142   MG-FMJ   W231   4.2   132.0   Energy (ft lbs)
    668   142   MG-FMJ   W231   4.2   178.9   Joules
                      
    612   142   MG-FMJ   W231   4.4   687.6   AVG
    745   142   MG-FMJ   W231   4.4   695.0   MED
    695   142   MG-FMJ   W231   4.4   47.3   STD
    661   142   MG-FMJ   W231   4.4   149.0   Energy (ft lbs)
    725   142   MG-FMJ   W231   4.4   202.1   Joules
                      
    718   142   MG-FMJ   W231   4.6   744.6   AVG
    706   142   MG-FMJ   W231   4.6   718.0   MED
    715   142   MG-FMJ   W231   4.6   39.2   STD
    800   142   MG-FMJ   W231   4.6   174.8   Energy (ft lbs)
    784   142   MG-FMJ   W231   4.6   237.0   Joules

    After this data, I set my loader for 4.4-4.5 grains and the recoil is stout (especially out of the S&W Mod 36) and accuracy good.  I really like the Montana Gold products so far, especially since I can use the FMJ spire point easily in my lever Model 94.

    NBC LT

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    Re: Chrono results with Montana Gold 142gn .357 Projectiles
    « Reply #2 on: November 11, 2018, 04:23:27 pm »
    Got more results on Friday for MG .357 142gn FMJ projectiles in .38 and .357 Magnum.  Really nice accuracy.

    S&W Mod. 19 .357 Magnum
    12.8 gn H110 Powder
    Winchester SPM Primers
    AVG VEL = 1019 fpm
    STD DEV  = 58 fpm

    S&W Mod. 19 .38 Special
    4.4 gn AA#2 Powder
    Winchester SP Primers
    AVG VEL = 776 fpm
    STD DEV  = 23 fpm

    S&W Mod. 19 .38 Special
    4.5 gn W231 Powder
    Winchester SP Primers
    AVG VEL = 737 fpm
    STD DEV  = 27 fpm

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