It is sold in multiple gauge ranges, including.410,10,12,16,20, and 28 gauges. 12 Gauge 20 Gauge 28 Gauge 16 Gauge 10 Gauge.410 Gauge The LEE PRECISION II Shotshell Reloader is the most popular shotshell reloading machine. First of all, it is affordable. Second of all, it works well. Thirdly it is reliable. And finally, there is nothing else like it. I've been using this press since I started reloading, and I still love it today.