The Sizemaster Shotshell Reloader, produced by MEC Mayville Engineering INC 812012, is designed to provide ease-of-use without compromising on efficiency or convenience. It features a \"Power Ring\" collet resizer that is proficient in returning bases to their original factory specifications. It\'s versatile to accommodate both brass or steel heads, high or low base. Moreover, it offers adjustability to cater to 3\" shells.