Our friends over at Benchrite have introduced their own adjustable primer pocket uniformer designed specifically with Lapua brass in mind and based on a tried and true Fred Sinclair design. This primer pocket uniformer features a carbide cutter with stainless steel stop and a comfortable medium sized screwdriver handle, but can be easily chucked in a drill for use under power. The tool ships with complete instructions and is pre-adjusted to cut primer pockets at 0.123" deep (perfect for Lapua 220 Russian and 6BR brass) and can be adjusted to cut shallower for non-Lapua brass, adjusting this tool to a depth beyond its original setting of 0.123" is not recommended by Benchrite or PMA Tool. 

This tool is now also available for large rifle primer pockets. This model is preset to 0.131" and is also adjustable.