I have 2 250 round boxes of .309 round nose flat point LEAD bullets.
These Brinell at 18, hard lead. Designed for 300 Blackout sub-sonic.
I have shot these until I bought my own mold.
$35 a box, or $70 for the pair. Cheaper than the website and no freight.
Missouri Bullet Company (MBC 309245BLK)
Avenger Firearms 214-577-5818
Lifetime NRA member