The best way to get what you want is cast them yourself.
you can go with Lee basic stuff nd their molds although I prefer Lyman and RCBS molds as they hold up a lot better. Lee molds make decent bullets but I have several and I feel they're a mite fragile. The two bullets I like best are the Lyman #311291 and the RCBS #30-180-FN. The Lyman bullet runs right about 175 gr. in wheel weight metal (WW) and is a decent deer slayer if you want to try hunting with a cast bullet. The RCBS bullet weight right at 190 gr. in WW metal. I've taken 15 deer with the Lyman and two deer with the RCBS bullet. Lyman also makes a 175 gr. bullet #31141 or #311041 using the newer catalog number. It's not all that hard to come very close to factory ammo velocity for serious hunting. Size your bullets to .310" and accuracy should be just fine.
To give you more data for incentive would require me to literally write a short book, Just pick up a Lyman cast bullet manual and give it a study. Right now, I'm trying to develope a load for a stubborn Mauser I have that was rebarreled to the .358 Win. Once I get it giving me what I want out of a load, I'll be taking the gun on a feral hog hunt. That looks like it will be a fun deal.
Paul B.