30 yards, with a so-so rest.* All loaded with 11.0 grains of 2400. I decided the max length on each by starting a bullet in, then using the crimp die to get rid of the flare in the case mouth, then seeing if it would chamber fully without actually engaging the rifling.
First the cast wadcutter seated way out to 1.63" oal
Same bullet, seated to 1.58"
X-Treme 148-grain plated wadcutter at 1.59"
Now the 162-grain semi-wadcutter, seated to 1.7" oal
The 162, I want to load some more and try it again with a better rest; when three are that tight and the other two mostly vertical in dispersion, that could quite likely be my error.
The X-Treme plated, and the cast at 1.58" I'd like to try again as well. The plated especially.
The cast at 1.63", screw it. That I'm pretty sure wasn't me.
And, since I remembered to bring some more, the X-Treme plated in .38 Special cases:
*and me doing the shooting, but we'll ignore that part right now