.38/.357 Magnum brass differences, et cetera ?

[robertbank]

The Lyman 42nd edition Reloading manual lists a max load of 8.0 gr of Unique for the Lyman 358156, and gives a velocity of 1250 fps for the 357 magnum. It also lists a max load of--- gr Herco, for 1388 fps. I really wonder what the pressures are for those loads.

The 4th Edition of the Lyman Cast Bullet Handbook lists 7.5 Grains of Herco as the MAXIMUM with a pressure if 41,000CUP 1151 FPS. Not sure why the variance but is seems to be significant. The 7.5 MAX is also listed in the 3rd Edition as well.

Take Care

Bob

[Minerat]

My Lyman cast bullet #4 lists max Herco load for the 358156 as 7.5 gr at 41000 cpu's in a 357 mag. I'd question the 11gr.

[robertbank]

That 11 grain of 2400 in 38 Special with a 158 grain boolit comes right out of the Lyman 44th handbook. It also lists 15 grains of 2400 for the same boolit in a 357 mag.
My 49th edition lists 8.3 grains as max for a 38 special and 14.0 grains for the 357 mag using the same boolit.
The early numbers have been lowered due to new testing standards.

Tazman go back and read the referenced post. He isn't talking about 2400 he is talking about Herco.

Take Care

Bob

[tazman]

Tazman go back and read the referenced post. He isn't talking about 2400 he is talking about Herco.

Take Care

Bob

My mistake. Post deleted.
I referenced the wrong post.

[tazman]

I shoot 11gr 2400 under commercial 160gr swc in .38spl cases in my M-15 S&W. It is a good load, needs a firm crimp.

That 11 grain of 2400 in 38 Special with a 158 grain boolit comes right out of the Lyman 44th handbook. It also lists 15 grains of 2400 for the same boolit in a 357 mag.
My 49th edition lists 8.3 grains as max for a 38 special and 14.0 grains for the 357 mag using the same boolit.
The early numbers have been lowered due to new testing standards.