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doubleshot

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Posts posted by doubleshot

  1. When trying to reproduce published results, if I have low velocities and overall length is close, I try increasing the crimp slightly. Sometimes it helps.

    thanks, I was thinking of trying this. I think my crimp looks good and I checked for bullet pull and did not see any but I'll try a little more and see what happens.

  2. sorry didnt clarify. I'm using a .38sp case just shooting out of a .357 revolver. Also forgot to list my average velocities were:

    3.6 gr---676 fps

    3.7 gr---680 fps

    3.8 gr---687 fps

    3.9 gr--720 fps

    The largest jump was from 3.8 to 3.8 gr so I think I'm close.

    How does it jump from 3.8 to 3.8? Lol!

    Ha...my bad I mean from 3.8 to 3.9 gr I had my largest jump in velocity.

    My velocity seems low for the amount of powder I'm using and trying to understand why.

    I did look at the Hodgdon web site for the LSWC load and I'm off even more than the lyman data.

    Hodgdon --3.7 gr =834 fps

    My load --3.7 gr =680fps

    same weight and type bullet and COL is very close to the Hodgdon load

  3. sorry didnt clarify. I'm using a .38sp case just shooting out of a .357 revolver. Also forgot to list my average velocities were:

    3.6 gr---676 fps

    3.7 gr---680 fps

    3.8 gr---687 fps

    3.9 gr--720 fps

    The largest jump was from 3.8 to 3.8 gr so I think I'm close.

  4. New reloader here just shot my first batch of test bullets last evening. Very cool! Great feeling to make my own bullets! Everything went great, I had 2 goals......1- don't hurt anyone including my self and 2- don't shoot the chrony and It went off without a hitch.

    I want to make a basic mid velocity plinking load and am using:

    --HP-38

    --Bayoubullets SWC 158 gr

    --Win primer

    --data from Lyman on a Dillon 550b press.

    I shot 3 rounds from the low end 3.6 gr and 5 shots each from 3.7,3.8 and 3.9 gr. Chrony was at about 15 feet from barrel.

    My average velocity was a good bit lower that listed. At 3.9 gr, which is almost at the top of the listed range, my average velocity was 720fps which is lower than the starting load in the manual which is 769fps at 3.6 gr.

    I'm shooting from a 4'' .357 and manual data used a 4''.38sp. My COL is a bit longer at 1.467'' and listed is 1.445''. I did that because I wanted to crimp in the groove.

    Would the longer COL cause that much of a lower reading ?? Or maybe shooting from a .357 instead of a .38 Sp??

    Either way should I increase my powder until I get in the range?

    Thanks

    Tim

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