Originally Posted by murphydog

I believe the issue with light bullets is a function of energy transmitted to the forcing cone. A light bullet at high velocity (125 gr .357 Magnums reach 1300-1400 fps) will transmit more force than the same weight projectile at .38 Special velocities. Energy increases proportionate to the square of velocity so changes there have a greater effect than bullet mass.

So, I would say no worries with typical 125 gr .38 Specials.