Simplest and cheapest counter. Number of rounds loaded X the number of time you must pull/push/cycle the handle to make a complete round, up and down as 1 or up and down as 2, your choice.
NRA Life Member, NRA Range Safety Officer, NRA Certified Pistol Instructor, IDPA Safety Officer, USPSA NROI Range Officer,
ICORE Range Officer
As you are, I once was, As I am, You will be.