32-20 brass is not noted for strength, even Starline. The gas laws are still in force. Pushing a 214 grain bullet down the barrel with a very small case will generate a lot of pressure, even if the load is relatively mild. David's bullet was designed with the .30-40 and .303 Brit in mind.
True...and I'm using loads a little bit lighter than those intended for the .32 Miller Short.
That particular case had been reloaded about 45 times, it was from my original batch which had been retired, but grabbed in error when I went out the other day. Primer pockets are not as snug as the new batch, either.
David
