scythefwd
Member
Not to mention almost 357MAG power out of +P+ 9mm.
.38sp +p+ also can obtain 357 mag levels. There are some less efficient loads for the .357mag that are actually less powerful than some of the more efficient loadings for the .38 sp (no +P or +P+) while being pretty much at the max allowed saami pressures for their respective calibers. This is according to load data from Modern Reloading second edition. I don't have to book here right now to pull out examples, but for the same bullet weight, a max load for the least 2-3 efficient .357 mag rounds are slower (and therefore have less muzzle energy) than the most efficient max loadings for the .38sp by almost 180 fps.