Not trying to derail the Op but can anyone tell me what the projectile diameter of commercially loaded ammo for the .38 S&W is?
I can't buy any commercial brand ammo in this calibre here in New Zeland and when I tried reloading with .357 158 grain projectiles, the ones I load in .38 Special, the accuracy was awful. At least 1 in 6 shots was a total flyer and another 1 in 6 would tumble due tot he .361 bore of the .38 S&W.
I ended up going to 148 gn HBWC which expand enough to fully seal in the oversize bore.