The cast bullet association and I disclaim any responsibility for use or misuse of this load data, use at your own risk.
Recently I saw a post about SEE and 4831 was specifically mentioned.
During Covid my usual powders were unobtainable so I began casting about for solutions with the powders I have on hand. Having 2 lbs of H4831 on I pulled out my 1974 edition of the Hodgdon reloading data manual #22. Pages 122 and 123 have loads for the .308 Win and 30-06 Springfield respectively.
I cast 20+BHN alloyed boolits with antimony and tin, many .30 boolits including the 311314, 311299, Lee 312-185, 309-120, 308-329 (for the Springfield rifle) and others. Eastwood pc coated, sized to .310 with a .014" Aluminum GC courtesy of Pat Marlin.
I decided to try the loads in the manual and loaded up a bunch of my casts within the ranges stated in the manual. For the first firing I sandbagged the rifle, firing it remotely for safety, after all, "slow burning powders are dangerous", After two successful rounds with no signs of pressure or any issues at all I began firing the loads shouldered in a normal manner. The loads were fired from my 1950 JC Higgins model 50.
I was impressed by the accuracy from the start. It paralleled my loads using 4895. I chronographed the loads but do not have that data available right now and if memory serves correctly they were all in the high 1880's FPS.
I love shooting steels at 200 and 300 yards and I was making them sing with my test loads.
Right now I have 100x 30-06 loads sitting on my bench waiting for a nice morning to go out and make a bunch of noise, but before I do I wanted to throw my 2 cents worth in on the much maligned H4831.
Hodgdon manual, number 22, 1974: (all loads with gas check)
.308 Winchester: 150 grain Maximum: load H4831 44.0 Vel. 2053 and 180 gr. Maximum: load H4831 40.0 Vel 1856. Oddly There is no minimum load data. I have not tried either .308 load at this time.
30-06 Springfield: 150 gr. H4831 40.0 gr. Vel. 1561, Maximum: load H4831 46.0 gr, Vel 2032 and 180 gr. H4831, 38.0 and Maximum: load H4831 41.0 gr. Vel. 2022.
A jacketed 150 gr bullet (same manual) starts at 56.0, so the load is reduced by 24 grains in a similar weight cast boolit, but I observed no ill effects.
Recoil was reflective of a slow burning powder (the push) and accuracy was extremely promising.
Once again, use all data at your own risk.