Originally Posted by
Petrol & Powder
I'm not sure I'm following you here.
While the 38 Special casing does have a lot of capacity (it started off as a black powder cartridge) and the 9mm Luger has a smaller case capacity, the big issue isn't the difference in capacity but rather the pressures they are allowed to operate at.
When we level the playing filed a little bit and compare the 9mm Luger to the .357 magnum - both cartridges that top out at 35K psi -then we can start talking about case capacity as an important factor.
Or did I miss your point ?