Tension applied by the cartridge neck on the bullet is very important for on target consistency. The force required to seat the bullet is an excellent way to quantify the consistency of your neck tension. To do this use the force pack and a standard .001" dial indicator to read force in 1lb increment (.001"=1lb). The Standard Force Pack for the K&M Arbor Press can be added with a .001 dial micrometer to the K&M Arbor press measure the neck tension of your reloads while seating bullets. Measures 0-150 lbs of seating force. K&M Arbor Press and .001 Micrometer not included.