I recommend
Lyman Cast Bullet Handbook.
The data for 308 WIN, Lyman #311332, 180gr :
Unique 12.2gr 1425 fps, 23,000 cup --- 15.5gr 1692 fps 38,000 cup
SR-7625 11.5gr 1270 fps, 21,500 cup --- 14.0gr 1492 fps 36,400 cup
5744 21.0gr 1667 fps 19,300 psi --- 32.5gr 2308 fps 49,200 psi
(I just picked 2 random powders and the "potentially most accurate", the 5744. There are 10 more powders listed for that Lyman mold.)
SAAMI specifies a max 308 WIN pressure of 62,000 psi, so data for cast/swaged doesn't even come close at the low/medium loads. The loads for cast/swaged are limited more by leading, not pressure applied to the gun.
So for the higher velocity loads in both types: (Simplified)
Undesirable results for cast/swaged boolits- leading, fouling.
Undesirable results for jacketed bullets - over-pressure damages gun.
The sectional density for that Lyman mold is .271. BC is .320. The Good Book lists the OAL at 2.705.
The Good Book also has an excellent few chapters before the data giving good lessons on the metallurgy and ballistics, fouling/leading, etc.
I posted some months ago about how I used to think that I "knew enough".. I've actually had quite a few guys come to me over the years and ask my advice about reloading, casting etc, so naturally I thought that I was an expert.
Joining WaGuns a few years ago opened the barn doors on my ignorance. I think that there are true experts who have forgotten more than I ever knew, so take this information as my best, which is wholly inadequate. Pick up The Good Book. If we cross paths before you do, you're welcome to borrow mine for awhile, as I am in a schedule that is far over my head and I won't be casting at least until December.