I decided today to load some .32 SWL using some 95 gr LFP cast bullets. There doesn’t seem to be any data out there for that size bullet, but I found a few old manuals that had something close. Lyman #44 had 93 gr cast bullets with a max of 4.3 gr Unique. Lyman Cast Bullet Handbook #3 showed a max of 3.7 gr Unique, and Ideal #38 4.3 gr Unique with a 98 gr bullet. I figured I’d be safe, and Only go to a max of 3.5 gr Unique. I only shot three test shots at this level from a Charter Undercoverette since it was getting ready to rain; and they shot true with no excess pressure signs, but I didn’t expect any since it’s a fairly low pressure round. Later I found MD Smith’s pages that showed a 98 gr .32 Long +P, which doesn’t exist, at a max of only 3.0 gr Unique, and a regular max of 2.6 gr.
I can find no other data for a bullet in this range, so I started wondering if the older data was really that much hotter than it should be. I can understand not loading stiff loads out of an old break top, but should these loads be safe in a .32 H&R like the Undercoverette?