Save time and money when sighting a newly mounted scope with this Bushnell laser boresighter. The device's bright, battery-powered laser makes rapid, ultra-precise work of boresighting, so you won't waste any
ammunition during the process. Created to meet the demands of gunsmiths and serious shooters, the boresighter includes 7 arbors for .22- through .50-caliber rifles and 20 and 12 gauge shotguns. The unit--which runs on three LR-44 batteries (included)--measures 6 inches long and weighs 8 ounces. A simple twist of the end of the boresighter activates or deactivates the laser. Also includes a nylon carry/storage case and hex wrench.
Owner Reviews, Ratings, Comments and Criticism
This boresighter is not too bad when you make a couple of modifications. The first involves that silly cam switch that so many have mentioned. Well, the fix is pretty simple - a small metal washer. Find a common metal washer (thin - about 1 mm) that is the same diameter as the LR44 battery and use it as a spacer between the switch cam and the battery.
Here's how to do it. Remove the battery compartment by gently prying the rear of the compartment forward and up. Remove the three batteries, drop in the washer, replace the batteries and then re-install the battery compartment. Now the rotary cam switch will work properly and positively.
Next, the spuds are easy to use, but not necessarily intuitive. First, you have to thread the bolts into the spuds. Be sure to use the longer bolts in the longer spuds - the length difference isn't very obvious until you compare them side-by-side. The idea here is to get each spud mated with its own bolt so that about 1/16" of threads protrude from the split ends of the spud. Then, you can thread the spud on the tapered end of the boresighter and the taper will open the spud to fill the appropriate bore.
As a previous reviewer mentioned, select a spud that's smaller than the bore. Then thread the spud onto the boreighter's tapered end until the taper opens it enough to fit firmly (but not too firmly...) into the bore. Once you place it into the bore and seat the boresighter in the muzzel, a small 1/4-1/2 clockwise turn will further expand the spud inside the bore to hold it tightly until bore-sighting duties are complete. Once done, twist the boresighter counter-clockwise to collapse the spud slightly so that the assembly will slide easily from the bore.
Easy stuff!
