I have searched the internet for gas checks for 30 cal. boolits but cannot find any in stock. The gas checks will be used with boolits cast from Lee 312 155 mold, and others as I add to my collection. I have given up on finding gas checks so now I'm in search of a GC maker for 30 Cal. I am asking for real life experience from those who own and use GC makers and their recommendations so that I can purchase my own.