I've reloaded for many years for my M1893 and M1916 Spanish Mausers.
The loads I've settled on were relatively light loads, as recommended in "starting loads" in the loading manuals.
I've had the most success using Horrnay 139 and Sierra 140 grain spitzers and 40.0 grains of IMR 4895.
Yes, I know. These are mild loads as modest velocities, but they are safe to shoot in my old surplus rifles.
As far as factory loads, the Federal 139 grain is relatively hotter, and the 175 grain Remington and Wnchesters are very mild.
Avoid European factory ammo as a rule. They load to the upper end of SAAMI standards, and do strain the old M1893 actions a bit, as do the surplus military loads. I've some FN cupronickle military ball that consistently give flattened primers in my '93. I now save them for the '98 mauser with it's superior gas handling design.
HTH
John