I've read threads saying the TL309-230-5R has stability issues & undersized for a lot of people. Lee also makes .30 cal molds from 113 to 200 grain. If you're not going for subsonic, is any of these better than the rest for .300 Blackout?
What about their 7.62x39 bullets, the C312-155-2R or CTL312-160-2R - if you're going to powdercoat and shoot supersonic, is the tumble lube or traditional groove the better choice?
C312-185-1R a contender?