doubleshot
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Posts posted by doubleshot
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Cool thanks.
Thats pretty much what I was thinking, but since this is all new I guess I was focusing too much on the chrony numbers.
Tim
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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
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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.
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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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Deep South? Just how deep are ya?
South Louisiana.
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New guy just saying hi.
I've never reloaded before and have a new 550b I've been setting up. Been reading lots of info and taking my time getting things going. Have a few more supplies on the way before I get going.
shot my first reloads-.38sp
in 9mm/38 Caliber
Posted · Edited by doubleshot