I have loaded several 7.65 French Long rounds with Unique powder and 86 grain .308 diameter jacketed round nose bullets. As very little data is available, here is what I have found to work in my pistol. I do not have a chronograph so these rounds were fired for function and reasonable accuracy:
3.1 grs Unique, std primer, 86 gr Sierra, weak, would not cycle 1935A slide
3.5 grs Unique, std primer, 86 gr JRN, mild, good function, 2" @ 15' group
3.6 grs Unique, std primer, 86 gr JRN, mild, 2" @ 15' group
3.7 grs Unique, std primer, 86 gr JRN, mid-range, 2" group @ 15'
3.5 grs Unique, SP Mag primer, 86 gr JRN, mild to mid load, 2" @ 15' group
These loads functioned as noted in MY pistol, and are presented for information ONLY. I do do have a labratory to test the safety of these loads so I do not recommend that anyone use this data. As few others have made data available, this is only presented as information. My pistol and cases showed no visable signs of high pressure, but caution is always advised.