9mm bullet seater stem for Lee 356-120-TC

thingiverse

The stock Lee bullet seater stem doesn't fit truncated cone bullets very well - If a bullet is placed on the case canted, it gets pushed in at an angle. This stem matches the nose profile of the 356-120-TC, so it helps align the bullet before it gets seated very far giving you better made ammo. To use the stem, reverse the original metal stem in the adjustment knob or you may shear off the ring at the top. Print with heavy walls (1.2mm) and thick top and bottom (2mm) with a heavy infill (30-50%) - it's small so it doesn't take long to print even with these settings, better safe than broken. Pictures show how to assemble in the bullet seater. Need a seater stem for a different round? Post a comment with the length and diameters of the original stem and a good picture of the bullet on a plain background with a scale (ruler) close (and parallel with) the bullet. I'll try to model as many as I can, promising that the person posts a make once the dimensions are finalized. If you need a die just to seat, check out this thing: https://www.thingiverse.com/thing:3275030 If any of my designs help you out, a comment is appreciated and tips are always welcome.