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.