That 231 data looks promising. I think I'll start with 10 % less than max and work up to the recommended charge if I don't find any signs of excess pressure in my particular gun. I have used 231 for quite a few years and found it to be a very good propellent for .45acp and .38spcl handgun ammo, so it should also be good for modernized .32 Long. I have plenty of it on hand so I may try it first when I get the bullets I ordered. I know that there are many new propellants on the market nowdays that I haven't used, but I stocked up on my old standbys when Obama was elected and they still do the job for me.