You didn't say whose primers you were using. My best LPM load is 7.0gr. HS6 under a Speer 230gr. TMJ-RN with Federal LPM. I use that in my old Remington-Rand service pistol and it is a mild, reliable, consistent load. I don't use words like "accurate" around that old war-horse but it never misses the paper.
From my Springfield Ultra-Carry, it is a good range load, reasonably accurate, and very reliable. I worked up a LPM load using Winchester primers for both of those guns a couple of years ago because they both seemed to prefer a harder primer. The Federal LPM just worked better than the CCI, Remington or Winchester in either LPS or LPM so I switched and it has been Golden. I didn't keep or can't find any chronograph data for that load. I use it at an indoor range where setting up the chrony is not allowed (can't go past the shooting line or behind the shields) and I evidently have lost or didn't keep my notes from the original testing. Note that it is
less than the 7.8gr. minimum starting load recommended by Speer for that bullet with a Federal 100 primer and HS6; consider it a bare-minimum starting load known to function in both older hardware and shorter barrels with mild report and good 50-foot accuracy.