Thompson Target Trouble Shooter Handgun Diagnostic 19x25 Paper Shooting Targets 20 Pack Yellow Extra Large. The eight diagrams on Trouble-Shooter show bullet groupings associated with these shooting errors. After shooting the target the shooter compares their own bullet grouping on the Trouble shooter target with the grouping on the diagrams. The instructions coupled with the diagrams enable them to locate their errors and adjust their shooting. The "Jerk"is just one of the common shooters mistakes illustrated on the new TROUBLE SHOOTER diagnostic target.By comparing your shot placement on target with the shot placement illustrated on the diagnostic diagrams you can easily see what corrective action to take. Designed for right and left handed pistol shooting 15 feet to 200 yards. Specifications for Thompson Target Trouble Shooter Handgun Diagnostic 19x25 Paper Shooting Targets: Manufacturer: Thompson Target Color: Yellow Fabric/Material: Paper Height: 19 in Width: 25 in Depth/Thickness: 0.0045 in Size: Extra Large Features of Thompson Target Trouble Shooter Handgun Diagnostic 19x25 Paper Shooting Targets Identify and correct common pistol shooting mistakes Includes the 5 fundamentals of handgun shooting Ultra bright fluorescent yellow and red bullseyes Package Contents: Thompson Target Trouble Shooter Handgun Diagnostic 19x25 Paper Shooting Targets Thompson Target 2550-20: Trouble Shooter Handgun Diagnostic 19x25 Paper Shooting Targets 20 Pack Yellow Extra Large