Create a Dillon casefeeder adapter for almost any cartridge*. Open SCAD is required - simply enter case diameter and case length, allowances for proper clearances are automatically generated, render and save stl, slice & print.. limited to calibe that use the Casefeed Body Assembly (Standard) -Dillon P/N 13080) SAAMI cartridge specs available at: The inlcuded .stl file is for .38"mid" Colt (.38 Special case trimmed to 0.900" length).