This tool identifies and eliminates bullet runout (or wobble). Just place ammunition in the tool, roll it, identify runout and use the dial indicator thumbscrew to adjust.
Universal centres ensure precise alignment of most bottleneck cartridges from .22 cal up to .45 cal.
Easy-to-use precision adjustment knobs allow you to true up the runout on any cartridge.
Sturdy frame can be bolted to your bench
Provides improved accuracy for hand loaders and can be used to true up factory ammo too.