The original Redding Model 3, time proven for accuracy and reliability. It has a micrometer metering chamber right in front for easy setting and reading. The micrometer makes it is possible to record your favorite settings and return to the same place weeks later when you wish to create the same load. Precision machined cast iron frame to give you years and years of service. All Redding Powder Measures feature hand honed frames and hard chromium drums for long life. An extremely sharp cutting surface easily cuts and meters even the most difficult powders. The Model 3 dispenses charges from 5-100 grains. You can order an optional M3 Handgun Metering Chamber that dispenses from 0-10 grains if you are loading for handgun or small cartridges. Cast mounting bracket is included. The see-thru drop tube accepts .22-.50 caliber case mouths.IMPORTANT- Redding Powder Measures Are Not Intended For Use With Black Powder!