Customer Reviews

134
4.1 out of 5 stars
Sightmark .22LR Boresight
Price:$34.96 + Free shipping with Amazon Prime
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131 of 136 people found the following review helpful
on October 4, 2011
I've uploaded some photos to let you see what this 22LR boresight looks like and how it works, since the Amazon photo does not clearly show the 22LR boresight.

Basically, unlike the other Sightmark boresights, the 22LR "bullet" that goes into the gun's breech contains only the laser, as the 22LR form factor is too small to hold any batteries. A one foot long wire connects the 22LR Sightmark "bullet" with a battery box outside of the gun. The box holds two AAA batteries and has an on-off switch.

The AAA batteries are cheaper and longer lasting and save you the trouble of getting extra silver oxide button batteries, used by the other Sightmarks. However, the design raises several other issues, especially with 22LR pistols that use a slide action.

The laser "bullet" is longer than a 22LR round. This extra length keeps the bolt from closing the chamber and shearing off the wire. Still, the wire looks delicate and flimsy and there is a potential durability issue here of the wire eventually breaking after extensive use.

The Sightmark boresight works fine for non-slide action pistols such as the Ruger 22LR pistols. It would work fine for 22LR rifles also.

In 22LR pistols with a slide action (e.g., the Walther P22), the iron sights, slide action, and bolt are all mechanically linked together and move together. Some slide action pistols also have a barrel that tilts in a movement linked with the position of the bolt and slide (the P22 barrel doesn't tilt).

Since the 22LR Sightmark boresight does not allow the bolt to close completely (see uploaded photo), there is the potential for the laser boresight to not be pointing in the final alignment of the iron sights and slide-barrel combination when the slide is fully closed in these pistols.

Still, the potential for mis-alignment would be mostly in the up-down direction. Using the 22LR Sightmark boresight in my P22, I found that the sights were aimed slightly to the left of the laser dot. The P22 fortunately has an adjustable rear sight (or maybe this was why it was mis-aligned in the first place).

And so because this 22LR Sitemark boresight keeps the bolt from closing completely, its accuracy for slide action pistols is a bit uncertain. It will work fine for all other guns where the position of the bolt is not linked to the rest of the gun's frame, barrel, or sighting mechanism.
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36 of 39 people found the following review helpful
on December 3, 2012
Verified Purchase
got my boresight in the mail. promptly opened it up and tried it in my p22. started looking through the packaging for a shim of some sort, it moved so much i thought it must come with shims. didn't find any. after fooling with alu. foil and tape i settled on some very thin medical tape wrapped around the boresight to make it fit snug in the barrel. next im going to try teflon tape and if its still crappy im sending it back. also had the exact same issues with my 10/22. im going to bet they designed these things to fit the tightest(?) match barrels around. anyways i tried the swivel method mentioned by another reviewer and sure enough the beam comes out of the boresite at an angle. from 25ft using my finger to wobble the bore sight in the chamber, the laser had a "grouping" size of about 8 inches. Update: Never did find a way to make it work and after giving it as a gift for Christmas, my friend ran into the same issues with all of his guns. they refused return siting outside return policy, which i was understanding most companies kinda wave right after Christmas for obvious reasons. not this one. so in addition to this being a crappy product, the company action gear gets a big thumbs down too.
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23 of 25 people found the following review helpful
on May 9, 2012
Verified Purchase
Wobbled in the chamber, didn't point down the center of the barrel, I couldn't use it so I sent it back.
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21 of 23 people found the following review helpful
on March 14, 2012
Verified Purchase
This boresight worked great for sighting in my ruger rifle and my walther pistol. You have to be easy with it though. The small wire out of the side looks very fragile. If it gets pinned in the barrel you will definately need something to push it out through the barrel. Do not try to pull it out with the wire.
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20 of 23 people found the following review helpful
on November 11, 2012
Verified Purchase
Don't waste your money or even your time and effort on the Sight-Mark .22LR boresight. You will return it.

At about 15 feet the laser projected an oblong dot with a series of rings off to the right. Realizing the rings were reflection off the inside or the bore, I maneuvered the laser in the chamber but could not eliminate them. The same thing happened with a number of other rifles and handguns.

At the range we zeroed the scope with another borescope and confirmed with several groups. At 50 yards the Sight-Mark was four MOA to the left and six MOA down. At 100 yards the dot looked like a grapefruit.

I've been considering a Sight-Mark red dot for a 22 semi-auto pistol but if the .22LR boresight is an example of the company's quality and performance, I may have to look at other brands.
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10 of 10 people found the following review helpful
on October 18, 2012
Verified Purchase
I purchased this to use on my Ruger 10/22 Takedown but the boresight does not fit snug even with the bolt pressing on it.

Because the fit is so loose when the laser beam goes down the barrel it reflects off the rifling and what comes out the end is far from a laser dot. Looks more like a flower.

I have used great boresights and this is not one of them. Waste of money in my opinion...
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14 of 17 people found the following review helpful
on December 9, 2011
I inserted the boresight into the chamber and slowly released the slide, so it sits "snugs up" the boresighter/chamber fit. Wire exited the L side of the pistol. Did my 25m zero & squeezed off 10 rds. 1" group, but 3" from center. Reinserted boresight, wire exiting L side, and it appeared to retain zero. Just for giggles I spun the boresight 180 degrees, wire now exiting the pistol on the R side. Did not retain zero (or what I thought was zero). Back to the mil spec method :(
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14 of 18 people found the following review helpful
on December 6, 2011
Verified Purchase
the laser light works.. but to actually use it to boresight a rifle, leaves a lot to be desired.. when the bolt is released, albeit slowly, you would lose the dot, and just see a red halo around your target.. the only way to see the laser as a single dot on the paper is to leave the bolt off it.. and run the risk of sighting on a laser dot that may not actually be where the bullet is going..
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4 of 4 people found the following review helpful
on July 8, 2013
Verified Purchase
Can barely see the laser point once it is on even in complete darkness so very hard to align the sight.
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2 of 2 people found the following review helpful
Verified Purchase
Is simple to use and protect the wire. This works for any laser boresighter whether it has a wire or not. Cut a small bit of cloth rag. I used an 8" x 6" piece of a pair of athletic shorts. For larger caliber & wireless sighters a much larger rag can be used. Lock the bolt back. Put the sighter in thru the ejection port. Roll the rag & push it up thru the mag well. For wireless sighters you can jam the rag in through the ejection port. Slowly (very slowly) let the bolt compress rag against the the sighter. Push the rag toward the far wall of the receiver so that it doesn't stress the wire but securely holds the sighter in the chamber. (This step doesn't apply to non-wire sighters.) I wasn't impressed with the storage case - I think it is it too small and will stress the wire to use it. (But it is a good size to put other wireless cartridge type sighters in.) I very carefully opened the package so I could store the sighter in the clear plastic it was packed in (with the sighter appendage part removed).
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