I needed to do some work on the bases of my 9mm bullets. This block will hold 50 bullets, base up or nose up if you want. The holes are 12mm deep so a really short bullet (eg: 115grn) might not protrude above the block surface. I made this block for 124 grn projectile with a flat nose. Note that I designed this to fit bullets tightly. If you prefer a looser fit then scale X and Y by a percent or two

Update: I added v2 which is a looser fit for lead cast and other ribbed projectiles.