BSA Bore Sighter

Discussion in 'Technical Questions & Information' started by OklahomaBrian, Jul 26, 2009.

  1. OklahomaBrian

    OklahomaBrian New Member

    Jul 6, 2009
  2. gdmoody

    gdmoody Moderator Supporting Member

    Sep 7, 2007
    Northeast Georgia
    I have been use a BSA bore sighter for several years. It is as good as any I have used. As you know, all it is going to do is "get you on paper" so that you can finalize the sighting in process. I have found out that it will not work in every situation (such as with super high mounts) but for probably 99% of the uses, it works great.
  3. TranterUK

    TranterUK Guest

    I have never used a bore sighter, and think perhaps I should get one. I mostly bore sight at a distant object through the barrel, adjusting the scope to match. Not ideal but gets you on the paper.
  4. LDBennett

    LDBennett Well-Known Member

    Dec 20, 2003
    Hesperia, CA
    I have witnessed more than a few guys at the range trying to sight in a rifle that was collimator bore sighted by a gun store or a gunsmith. They MIGHT get you on the paper at 50 yds and might not.

    If the gun to be sighted in has a way to look down the barrel from the breech end that is still one of the best ways to align the scope or sights with the target. The laser style units that fit into the muzzle end of the barrel and put out a red dot on the target work fine too. In my experience the collimator bore sighter doesn't always work if done by the unknowing.

    I bore sight my guns in my house, down a long hallway to a target stuck on the wall. The distance is about 50 feet. For looking through the bore I stick the gun in a rest, line up the bore with the target and carefully, so as to not move the gun, adjust the scope to the target center.

    For the laser type you only need to stick it in the muzzle, shoulder the gun and adjust the sight or scope until the red dot on the target (a blank wall at 50 feet will do) matches the sights. The one I use is tapered closest to the body of the laser and comes with a set of adjustable collets that go on the end of the laser closest to the breech making for a secure tight fit to the bore. It is so designed that you will not hurt the bore if you are reasonably careful. No rest is necessary or desired and you don't even need a target pasted on the wall, just the wall.

    All that being said, at $29 for the BSA collimator bore sighter how can you go wrong. If you keep records of how the gun sights or scope and the collimator end up then this would be a good way to assure your sights or scope have not changed with the environment or in transit on a hunting trip without firing a single shot. I can think of no case it would be an advantage to me so I'll stick to my methods and save the $29.

  5. Helix_FR

    Helix_FR Active Member

    Apr 14, 2009
    Imperial, MO
    haven't used that type but I also have watched people mess with them . I think the laser ones are better. Only issue I have with the laser versions is that they are not always set dead center when you get them. The instructions are to insert the arbors in the barrel then tighten them. Screw on the laser, turn it on while the gun is in a vice. Mark were the laser is on the wall then rotate the arbor and laser in the bore of the rife and adjust the laser until it quits making circles and stays on a single point on the wall. I'm not real hip to turning a steel arbor inside my barrel. Better alternative is to put one of the arbors in a pipe of some size close to a bore size of a caliber (.45 and below for my kit) chuck up the pipe and do your centering of your laser that way. Once you get it centered you'll never have to do it again, unless of course you drop the laser.

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