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  • Bushnell Laser Boresighter
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Bushnell Laser Boresighter

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List Price: $45.95
Price: $21.99 & FREE Shipping on orders over $35. Details
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  • Laser boresighter for gunsmiths and serious shooters
  • Makes it easy to sight a newly mounted rifle scope
  • Bright, battery-powered laser is rapid and precise
  • Includes 7 arbors for .22- through .50-caliber rifles as well as 20 and 12 gauge shotguns
  • Runs on LR-44 batteries (included); 6 inches long
122 new from $21.99 1 used from $18.94
Click here for the Bushnell Laser Boresighters owner's manual to find detailed product information, operating instructions and warranty details.

Frequently Bought Together

Bushnell Laser Boresighter + Caldwell Steady NXT Rifle and Pistol rest
Price for both: $46.48

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Product Description

Amazon.com

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.

Product Description

- Bushnell laser boresighter
- For handguns, rifles and shotguns
- Includes arbors for .22 - .50 caliber firearms
- Also includes arbors for 20 and 12 gauge shotguns
- Easy to use
- Spend less time sighting in and more time in the field!

BUS740100C

Product Details

Manual [PDF]
  • Product Dimensions: 10 x 4.5 x 2 inches ; 3.2 ounces
  • Shipping Weight: 3.2 ounces (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S.
  • ASIN: B001AGF9N6
  • Item model number: 740100C
  • Average Customer Review: 3.3 out of 5 stars  See all reviews (843 customer reviews)
  • Amazon Best Sellers Rank: #640 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Customer Questions & Answers

Customer Reviews

3.3 out of 5 stars
5 star
262
4 star
196
3 star
127
2 star
89
1 star
169
See all 843 customer reviews
Save your time and money....buy something else.
moneywasted
Instructions say to use an arbor size smaller than the barrel then as you screw in the arbor to the laser, the arbor expands and you get a snug fit inside the barrel.
simplemanjd
On target first shoot and easy to use, Saves ammo and getting some one to bore sight it.
Juan S.

Most Helpful Customer Reviews

173 of 177 people found the following review helpful By Melsman on February 10, 2009
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!
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322 of 338 people found the following review helpful By Sheldon on April 25, 2008
I gave this 5 stars because I figured out how to resolve the problems associated with it. First, the on/off switch is horrible. The sight uses small batteries that fit into a tube and are held in place by a pointed contact and a spring. When you turn the knob to off it pulls the batteries away from the contact (feels firm). When the unit is on the knob allows the contact to connect and the knob feels loose.

The whole unit easily pries out with a small screwdriver and one can clean the contacts and lengthen the spring a bit. This will take the vagueness out of the switch and stop the laser from being intermittent.

Also, don't use an adaptor that fits exactly. Use a size smaller and adjust it until it fits the bore properly. That means tight enough to center but not so tight it gets stuck in there. If you find the exact size without having to adjust it and you force it in the barrel it may get stuck. It also takes a bit of effort to put the adjusting screws in the adaptors (one screw for each adaptor). Once in they will stay put with the adaptor.

Finally, while this is a red laser you do not have to bore sight your gun or rifle indoors or at night. It will reflect back in broad daylight against anything that's reflective, like a traffic sign. The neighbors may think you're nuts but it works great.

Once you overcome the funky switch, it works great. Just remember you will have to go out to the range to do your final adjustments. No boresight is perfect. They just get you close.
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341 of 366 people found the following review helpful By wheezer on May 29, 2010
Let's start out by reminding everyone that this is $25 and not $300. Try to remember this. I've read most of the negative reviews, which prompted me to write this one. Yes, I own and have used this product many times. Bushnell had to find a way to manufacture this product cheaply so that they could offer it to you at this price. Do you all still remember, it's $25. OK, don't look at the front and say it's misaligned because the laser lens isn't centered in the opening of the housing. Doesn't mean a thing. Don't say the arbors fit loosely in the bore because they are expandable. That means you take the one that most closely matches the diameter of the bore, screw it onto the end of the bore sighter until it makes contact with the taper, and then continue to turn it down with the Allen wrench so that it begins to expand. Keep checking the amount of expansion until it fits your bore. And for gods sake, don't spin it in your drill to check calibration. You can't do that. You are assuming the housing is PERFECTLY machined. It isn't. The stem is thin and not perfectly straight. The factory calibration takes place between the TWO tapers in the housing. This eliminates any misalignment in the thin shaft. Clamping on the stem doesn't compensate for this error, not to mention that if you accidentally spin it fast enough you will do irreparable damage to the housing. DON'T DO IT! These bore sighters are designed to get you on paper, not dead on. And that's exactly what they do. The fine tuning is up to you. Yes, the switch is cheap, so operate it gently. The laser isn't bright enough for daylight, so use it in dimmer conditions. The dot on some may not be a sharp red circle, hey, it's $25. Are all you complainers trying to get over on Bushnell? Lets try to apply a little common sense here.Read more ›
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159 of 168 people found the following review helpful By Sojourner Truth on April 1, 2010
I recently purchased three Marlin bolt-action .22 rifles -- one each for me, daughter, and son. Son owns 20 acres where we can shoot but he's 2 hours away. I mounted a scope on each of the rifles then bought this Bushnell boresighter.

My neighbor's workshop is about 60 yards away from mine across flat ground. Just after sundown I used this device to boresight all three rifles. It was simple -- screwed the .22-cal adapter into the end of the boresighter; jammed it down the muzzle of the rifle; put the rifle in a bench stand on the concrete porch of my workshop; aimed the rifle at my neighbor's workshop and turned on the boresighter; looked through the scope; there was a red dot on my neighbor's workshop wall 60 yards away; fiddled with the UP/DOWN LEFT/RIGHT knobs on the scope to put the crosshairs on the red dot and that was it. Maybe took five minutes and most of the time was spent screwing the adaptor onto the end of the boresighter.

Yesterday took the rifles to my son's place where we set up a bench rest then put paper targets at 50 yards and 100 yards. At 50 yards all three rifles shot within the rings with the first three-round shot group. Two more groups and we were tearing up the bull. Nine rounds per rifle to zero the sights. All rifles were dead on at 100 yards also, with slight Kentucky windage correction for elevation.

Negatives. Instructions could use a better illustration. The plastic adapters should be marked with their caliber. The on-off switch is dinky and can be turned on by sliding the boresighter into its little case. I put a piece of masking tape over the switch to protect it and keep it turned off. This device is lightweight and not exacly "robust.
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