need help to cross check a .357 magnum load
.357 magnum, 158 gr. JHP, Blue Dot powder......my Alliant data says 10.7 grs. & Speer says 10.2 max.( which seems really low from memory) If you have the most current SIERRA & Hornady manual, please give me their maximum load using these ingredients. I do realize with modern pressure testing that loads have become less and loads will vary due to that specific maker's bullet, but i want a general cross reference. Thank you for any & all assistance here.
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Yo nebrguy, My Lyman #48(2002) still lists the 357 JHP at 10.7 gr. max for Alliant Blue Dot.-1610fps. just remember thats max for 357 MAG cals. used in-CARBINES-, SPEER MIGHT have THE SAFE LOAD!! STAY SAFE JIMBO
On your mark-get set- go away!!0 -
Hi nebrguy,
I just consulted my Spear Manual, Number 13, and it lists the .357 Magnum, 158 grain, JHP loaded with a maximum charge of Blue Dot at 10.2 grains.
I also just checked the Alliant website and they list a load for a jacketed soft point(JSP not JHP)at 10.7 grains.
These two listings are not identical. It should be kept in mind that the Speer data was developed with the S&W Model 19, the Alliant with a pressure barrel. Additionally, the Alliant data used Federal primers and the Speer data used CCI primers. As previously mentioned the bullets were similar but not exactly the same.
These subtle diffences could possibly explain the difference int he two sources.
Regards,
Heavyiron[8D]
"If I don't see you nomore on this world, I'll meet you on the next one, and don't be late!" - Jimi Hendrix0
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