For more understading and improving the measurement process, I think we should perform gauge capbility study by following steps below
7 Basic Steps To A Measurement System Analysis
Step 1: Preparation for the study
Step 2: Evaluate Gauge Stability
Step 3: Evaluate Gauge Resolution
Step 4: Determine Gauge Accuracy
Step 5: Calibration
Step 6: Evaluate Gauge Linearity
Step 7: Determine Gauge Repeatability and Reproducibility