30-06 bullet holder belt clip
If you print this at size it should fit a 30-06 bullet. Depending on how tight you want it size it up or down. Sizing it 10% down should fit a 7.62x39. I printed mine with 4 perimeters 190 temp pla 60 bed, 40 speed, 20% infill and it took 5.5 hours at .3mm. No supports needed. It actually clips to jeans pockets really well. I wouldn't force it over a belt unless it was small. Hope you like it.