Hello, thesheepdog. Thats a good question...When I was trying to find a load for my .22 Hornet using cast-bullets, I got tired of the near 20 mile round trip to range, only to have to pull bullets that didn't shoot...and pulling gas-checked bullets is a pain because half the time the darned check remains in case neck! I had made up a powder charge chart one rainy weekend & triple checked all loads to markings on my Harolds Schuetzen measure. I brought about 15 loaded rounds...three shot groups..just to see if they would group. The rest of brass was neck sized & primed. I got quite a few funny looks from the other guys at range when I set up my measure. For bullet seating I used a Wilson seater with Sinclair micrometer top...I can seat both jacketed & cast bullets with pressure from palm of hand..didn't bother with re-priming, brought enough primed cases along for day's shooting...It sure beats running back home to a loading press every time you want to change something, or repeat a load. As a result of all this work...about 5 years worth! I finally equalled best jacketed accuracy with cast at 100yds. On a good day, this rifle will shoot well under 1/2" Best of luck!