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Thread: Keith's heavy .38

  1. #121
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    Sep 2017
    Location
    South Louisiana
    @jtcarm - I got 1080 fps using a 170-grain SWC over six grains of Unique in .38 Special cases from my 4" 681. You could back that off somewhat and get 1000 fps from the Blackhawk with less recoil and unburnt powder. I personally wouldn't use slower-burning powder for that unless the improved accuracy merited shoveling all the unburnt powder out of the gun.

  2. #122
    My 1961 edition of Sixguns lists 5.0gr of Unique and 13.5gr of 2400 as loads for the .38/358429 combo. The latter he specifies as a .38/44 load; the former is apparently totally safe in a J Frame .

    I have some 358429 coming from Rimrock. I plan to work up to around 12gr of 2400. Somebody on another forum was able to pressure test that load at 12gr, coming in just shy of 29,000PSI. I’ll be launching them out of an N Frame.

  3. #123
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    Join Date
    Sep 2017
    Location
    South Louisiana
    The Lyman manual that came out in '61 (lost the front cover and first few pages, but they have a contest with first prize being a trip to the '62 NRA Nationals) shows six grains of Unique and 10.5 grains of 2400 for 358429, with the caution that they're for "heavy frame guns only". The ones I loaded are dedicated to my 4" M28-2.

    This song came up on Pandora while I was typing.


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