quote:Originally posted by c1steve:
Mass x V squared is the energy formula. The .357 has 40% more energy than the 9mm. So for stopping power it will be much more effective.
quote:Originally posted by Strambo:quote:Originally posted by Wolfpacker:
Were the 10MM, 40 cal., 357 Sig, .380, etc., already maxed out for capabilities? Didn’t the improvements in bullet technology also improve those as well?
No, those other calibers weren't maxed out and have benefited from bullet improvements as well.
In the case of .40, .45, 10mm, the benefit isn't as pronounced as those already had a bigger starting diameter and more energy to drive expansion and penetration. Now the penetration and expansion is much more consistent and reliable through different media, but it was always decent and a failure to expand is still a .40-.45 caliber hole.
.380 benefited more than 9mm. Used to be you had to pick between adequate penetration OR expansion. Now there are loads that can give you both...just barely, but they do get it done.
quote:Originally posted by dsiets:
. Don't expect to be enamored w/ the P239 factory grips....You might want to start looking around now.
quote:Originally posted by ensigmatic:quote:Originally posted by c1steve:
Mass x V squared is the energy formula. The .357 has 40% more energy than the 9mm. So for stopping power it will be much more effective.
Nobody's arguing the 357 SIG doesn't have more muzzle and terminal energy than even a 9mm +P. Again: The argument is that handgun rounds have so little that the increase doesn't amount to an appreciable difference when it comes to effectiveness.
quote:Originally posted by c1steve:
9mm Speer +P Gold Dot has 364 ft. lbs, and in .357 is has 506 ft. lbs. of energy. Both rounds use 124 grain bullets, but the 9mm is travelling 1150 fps, and the .357 is going 1350.
Mass x V squared is the energy formula. The .357 has 40% more energy than the 9mm. So for stopping power it will be much more effective.