YosemiteSam357
New member
I have a question regarding various .357 mag loads. I think I have the answer, but wanted to run it by the experts.
I'm told that damage can be done to K framed S&Ws (and other light framed guns) by using 125gr .357 mag loads, as the guns were originally developed when 158gr was the load of the day. The argument is that the gun wasn't designed for the higher pressure & recoil of the 125gr. load, and both flame/gas cutting and frame stretching can result.
What I don't understand is that, when fired, the 158gr load seems to deliver quite a stronger kick than the 125gr load. This is consistent with my experience with other calibers: a 230gr load in .45ACP kicks quite a bit more than the 185gr load. If this kick (felt recoil) is so much stronger, how can the 125gr .357 load exert more strain on the gun than the 158gr load? I can understand the gas cutting angle, as the 125gr load likely has higher pressure, but why would there be a frame battering/stretching issue with a lighter bullet?
Or is it that the 125gr .357 round is specifically loaded "heavier" than the 158gr? On vendor sites where I've seen load data (Remington, Winchester), it appears their 158gr loads are more similar to their 110gr loadings, where the 125gr loading is considerably stronger than both, in both velocity and energy.
Can anyone clear this up for me? Just trying to learn!
Thanks in advance,
-- Sam
I'm told that damage can be done to K framed S&Ws (and other light framed guns) by using 125gr .357 mag loads, as the guns were originally developed when 158gr was the load of the day. The argument is that the gun wasn't designed for the higher pressure & recoil of the 125gr. load, and both flame/gas cutting and frame stretching can result.
What I don't understand is that, when fired, the 158gr load seems to deliver quite a stronger kick than the 125gr load. This is consistent with my experience with other calibers: a 230gr load in .45ACP kicks quite a bit more than the 185gr load. If this kick (felt recoil) is so much stronger, how can the 125gr .357 load exert more strain on the gun than the 158gr load? I can understand the gas cutting angle, as the 125gr load likely has higher pressure, but why would there be a frame battering/stretching issue with a lighter bullet?
Or is it that the 125gr .357 round is specifically loaded "heavier" than the 158gr? On vendor sites where I've seen load data (Remington, Winchester), it appears their 158gr loads are more similar to their 110gr loadings, where the 125gr loading is considerably stronger than both, in both velocity and energy.
Can anyone clear this up for me? Just trying to learn!
Thanks in advance,
-- Sam