MidTen 30-06 25-06 and 270 Cartridge Laser Bore Sighter .270

I picked up this 9mm laser bore sight to make sighting in a lot easier and save on ammo, and it definitely delivers. It fits snug right in the chamber and gets you on paper almost instantly, which saves a ton of time and ammo, especially when setting up a new optic. Accuracy out of the box was impressive. I only needed minor adjustments at the range after using it, which is exactly what I was hoping for. The brass construction feels solid and holds up well, even after multiple uses. The included batteries are a nice bonus. Having multiple sets ready to go means you don’t have to worry about it dying mid-setup. Just keep in mind there’s no on/off switch, so you’ll need to remove the batteries when you’re done. Overall, this is a simple but effective tool that makes zeroing faster, easier, and more efficient. Great addition to any range kit.

I have one for each of my guns with scopes. They work great some people complaint about the laser light not being bright enough. I have never had that issue. It's very easy to do, just load the batteries put it in your gun like you do when you have real ammo. The laser comes on as soon as you load the batteries. Then you set your gun on a gun vise if you one. Next have a target setup at about 25 yards or more It's up to you, it is recommended to do 25 yards. Point at the target on the bulls eye with the laser then adjust your scope cross hairs so they come to a cross right on the bulls eye and the laser light. Then you just unload it from your gun and load real ammo, start shooting at your target and see if it's correct if not go back and do the laser again. It really works and it's so easy. I take mine with me anytime I go hunting or just target practice just in case my scope needs to be readjusted. I really recommend this and I got mine in two days. It's a very good product. You can't beat the price on Amazon, if you go to a hunting store you will pay double or more for the same thing. Last thing just make sure that you order the right caliber for your rifle or pistol.

Works great for the 5.56

Nice little tool. Checked with 4 different 9MM pistols, the bore sight laser is off about 3 moa left and 1 moa low on each pistol. Still a nice tool to have. It’s close enough to use for rough zero. For the price it’s worth it. There’s no on and off feature, just insert the batteries and it’s on, take them out and it’s off. If you need absolutely exact zero probably spend more money.

Works well. I used it to align a new Sig P365 laser at 30ft. At the range it Provided reasonable accuracy without too much adjustment.

This thing is spot on in a HK VP9. It allows for the chamber to close and fits firmly without getting stuck. As has been said before, it will not eject, and so you have to thunk it out or poke it out. The laser is quite powerful and easy to see. Great to sight in a green dot because of the contrast. Whether this is for you depends on your use case. If you do a lot of boresighting you will want something easier to use and with an on off switch. The batteries are teeny tiny and to keep having to remove them to turn it off is a great inconvenience. If you are only occasionally sighting in a Trijicon or other premium sight that is permanently mounted, this is a great value. Just carry a little baggie for the batteries and forget about it in your bag. But if you are going to use it a lot, its going to get annoying and you will drop and maybe lose the tiny batteries. I carry alot of these batteries so I put about 10 in my bag. So if you are sighting a rail mounted optic, you may want to consider something else. A little CLP on the outside and it will fall out of your chamber when you open it. About the lack of an on/off switch: I knew of this when I ordered it (apparently some of the other reviews did not read the description) and I was okay with it, that is until I actually had to keep doing it. But at 15 bucks, what the hell, it will be another toy that I don't need but may occasionally find a use for. I even sighted my sons nerf gun and mounted one of the 12 dollar red dots on it. As a note, I also purchased the Okeba 0.22 to 0.50 Caliber Cartridge Red Laser Boresighter. I was astonished at the quality and accuracy of it. They both confirmed each others accuracy. The Okeba is versatile and easy to use from a 22 Ruger Mark IV to a 1911. If you need the versatility or plan to do many boresightings, spend the extra 20 bucks. Or be me and buy both.

Easy to use. Just read instructions and take the batteries out.

Very bright, easy to use. No on off switch tho, you have to remove the batteries. I used this to zero a red dot at 25 yards, the beam was bight enough that I could have gone much further. I rotated the boresighter in the chamber to recheck it and make sure it was truly centered and it was.

Very bright works well to get you on the target

This will help get you on paper a lot faster/ cheaper than running a whole box of ammo through your rifle. Very happy! Only gripe is that you have to remove the batteries to turn it off.

Facile a utiliser, parcontre le laser n'éclaire pas bien par temps ensoleillé.

Best thing ever! No more wasting shells! I have one for every rifle I own

good accurate laser chambers and extracts easily makes quickscope setup