RCBS 505 Mechanical Scale features magnetic dampening system plus large black-on-white graduations for fast recognition. The three-poise beam is graduated in 10, one and 0.1 grain increments to achieve =/-0.1 accuracy. Its tip-proof aluminum pan keeps powder from sticking or spilling and the hardened knife blades ride on agate bearings for long life and sensitivity. There's even ounce-to-grain conversion on the base for shotshell reloaders.