...have a long action stagger feed .204 Ruger or 222 Rem Mag blind mag? Looking at a 6x45 (or possibly 6TCU) to build using my .223 chambered 1993 model 110. I would like a longer magazine length for loading heavy-ish bullets out further. I am running into the not knowing specifically what to search for or where problem. The mag I have will permit about a 2.260" COL before running into problems. I plan on using 85SGK as a primary projectile provided I find a good MOA load. I don't need a bug hole shooter, just a good consistent 400 yard coyote medicine delivery system that is inexpensive to reload and convert to.