Much improved version of this ammo block for 0.22 calibre target shooting on 10 shot targets plus 3 sighters.
Measures 80mm wide by 70mm deep by 20mm high (about 3 1/4" x 3" x 3/4").
Printer settings 0.2mm layer height, 15% fill, .35 nozzle printed on my OB1 printer.
Print it out, all holes should be correct as printed.
Load it up and shoot responsibly.