It's probably been discussed a couple times but I couldn't find any dedicated threads. I've searched on other forums and for some reason this subject brings out a plethora of misleading information. :banghead:
My conclusion is this: With barrels ~5" or less the 10mm wins out in the energy department but add on another two inches or so and the Magnum takes over. That is, a .357 mag out of a 6" barrel will supersede a 10mm out of a 6" barrel (provided the loads are to maximum pressure and the proper bullet weight is selected).
In my comparison I've exclusively looked at two rounds: The Buffalo Bore 125 Grain .357 and the Double Tap 135 grain. I imagine penetration would go to the .357 in any event but these two rounds are very close in terms of muzzle energy. Note: I'm aware that these two loadings wouldn't be the best option for max penetration.
So lets hear what you guys (and gals?) think about this.
My conclusion is this: With barrels ~5" or less the 10mm wins out in the energy department but add on another two inches or so and the Magnum takes over. That is, a .357 mag out of a 6" barrel will supersede a 10mm out of a 6" barrel (provided the loads are to maximum pressure and the proper bullet weight is selected).
In my comparison I've exclusively looked at two rounds: The Buffalo Bore 125 Grain .357 and the Double Tap 135 grain. I imagine penetration would go to the .357 in any event but these two rounds are very close in terms of muzzle energy. Note: I'm aware that these two loadings wouldn't be the best option for max penetration.
So lets hear what you guys (and gals?) think about this.