You won’t be disappointed, then. Forming the brass from 10mm stock is a one - pass affair... ...just like resizing a fired case. They used to “tune” compensators for this cartridge, exploiting the blast to keep the sights level. Sounds like you have the tools to build your own! :thumbsup: Best resource for this is a thread on GlockTalk, by someone who goes by “The_Shadow” (?) - memory’s not what it used to be.