Pro-Shot Adjustable Stopper Bore Guide .22 Centerfire-.30 Caliber. 22 Centerfire - .25 Caliber/.26-.30 Cal.-Tips and Ends with solvent port ends for both sets) Package Contents: Pro-Shot Adjustable Stopper Bore Guide The Pro-Shot Adjustable Stopper Bore Guide .17 Caliber BG5 is a quality addition to the Pro-Shot lineup. For more great deals on Gun Cleaning Bore Guides by Pro-Shot please browse our Pro-Shot Gun Cleaning Kits page. Pro-Shot Adjustable Stopper Bore Guide .22 Centerfire-.30 Caliber