The Bushnell Professional Boresighter (Bushnell part no. 743333) is an essential tool for quickly aligning a scope or iron sights with the barrel of a rifle or handgun. Correct use puts your sighting-in test shots on the paper so that only a minor expenditure of time and ammunition is needed to reach a pinpoint zero at a given distance. It uses a set of arbors and expanders to fit calibers from .177 up to .45. Bushnell notes that final sighting in must be done by live firing, since ammunition and rifles vary.

Key Specifications

• The arbor range covers .177, .22 to .270, .270 to .35 and .35 to .45 caliber, so one tool fits a wide range of bores.
• It is built to align a scope or iron sights with the barrel, so you start close to zero.
• It works on rifles and handguns, making it a general range tool.

Frequently Asked Questions

What calibers does it cover? The arbors and expanders cover .177, .22 to .270, .270 to .35 and .35 to .45 caliber.

Does it replace live fire? No. Bushnell states that final sighting in must be done by actual live firing, because of the many variables in both ammunition and the firearm.

Buy the Bushnell Professional Boresighter

A boresighter saves ammunition by getting the first shots on paper. See more from Bushnell in our scope accessories selection, then order from our Lubbock, Texas gun shop for fast, direct shipping.