Redding Reloading Match-Grade 3BR Powder Measure w/both chambers Features:  Cast mounting bracket included with all Redding Powder Measures.  Clear powder reservoir.  Clear See thru drop tube accepts all calibers from .22 thru .45 cal.  Body has standard 7/814 thread to fit mounting bracket and optional bench stand with lockingring for fast dumping.  Pistol Metering Chamber charging range approx. 0 to 10 grains  Universal Metering Chamber charging range approx. 5 to 100 grains