Setting lasers: is there a "formula" for distance?

I'll take your peeve as being directed at me.

Since most CTC lasers are the grip type, and have dual axis offset, I assumed that was the type the OP was asking about. Based on that assumption, my answer had to be a bit more involved than Gary's was about the rail mount.

I agree that Gary's answer was nice and concise, but I would suggest he was also able to be so concise because a couple of us had already addressed the geometry and ballistics factors

No, certainly not! I didn't mean to indicate that my peeve was directed at anybody; was just complimenting the other guy's concise, cogent post. I just don't like to wade through a lot of superfluous bloviating on a subject that could be covered by a short, to-the-point post.
 
formula for distance

The answer that MLeake gave was a bit long. Was to explain thoroughly the formula for sighting in BF Tannens laser. The one's that know all of this it seemed a little redundant. I thought MLeake did a great job sharing his knowledge on the subject for MLeake. I wonder if he could share some on patience. Just a thought.
 
ltc44, I hadn't realized we had a recurring pattern of disagreements.

edfrompa, I'm a bit baffled by your comment on patience and sharing on that. I don't know if you mean that I should learn patience, or if I should teach people how to be patient with me.

You could have some validity either way.

Cheers,

M
 
formula for distance

Mleake, you did a great job explaining. That is what was needed for Biff Tannen to hear. Some people thought it was a little drawn out. I thought you addressed HIS question very well. It was meant for Biff Tannen, that is where the patience comes in for the others to endure your explaination, it was not for them but for Biff Tannen. Good Job!!!!
 
Only one major about hunting on Military reservations.

Just sent a back handed compliment. Mostly i agree with you but have technique issues.

It is kind of like a sentry take down. You stick the knife in (principle) do you rip or twist (technique)

Good shooting and be safe.

To simplify your thoughts. Align the site so the bullet strikes at the max HD range. The trajectory of the bullet will be within the vital zone of the intruder.

In the Military it is called battle site zero. For example a 45 ACP 1911 sited in for 50 yards will stay in the vital zone from the Muzzle to about 55 yards.

Your system, except for a purist, is perfect of a HD weapon.
 
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Just received my Crimson Trace CMR-201 yesterday. Mounted it on one of my ARs. Have a Bushnell TRS-25 mounted on receiver. Was pleasantly amazed to see that the laser dot overlays exactly the Bushnell's red dot.
 
I have three sets of Crimson Trace Laser Grips, one set on a Smith and Wesson 638 Bodyguard, one set on a Sig 239 and one set on a Glock 34.

I think they are a useful tool although I hate the fact they can give your position away and I do not like the fact that the Glock laser does not have an on/off switch where the other two do where in a tactical situation you could turn it off if you did not want to give your position away where on the Glock if you accidently grip it hard enough the laser will deploy.

I have two schools of thoughts on sighting in the laser and have had fun trying out each. One method I set the laser just over the front sight so when if you bother to line up the rear and the front sight the red dot is just over the front sight and it is only dead on where the laser intersects the path of the bullet at one point. For the close range work of laser work this is fine however at the longer ranges the path of the laser and the bullet diverge significantly and you can see a red dot for a fair distance at night, however I have not done tests to see how far you can see the laser at night and how far off your bullet impact would be using the laser.

The other method I have used is to install the laser and shoot at the range, confirm it is shooting a little low and to the right and just leave it alone. The school of thought here is that an inch low and an inch to the right at close range will not really matter at close range in a self defense situation with the adrenalin flowing and shooting dead center mass. The other thought is no matter how far at night, if you can see the laser it would probably be shooting close to an inch low and an inch right even with the bullet trajectory, as opposed to way off where you set the laser to coincide with your bullet trajectory at just one point at close range. Once again I have not done night tests on this to see how far I could see the laser and shooting to see if this is true.

For the close range shooting of the laser in self defense work I think either method would work just fine.

I hate white light at night you just gave the enemy a perfect target to shoot at with you behind it,,,but in a civilian world what they never mention about lasers or night sights is that you should identify your target before you fire and with the target illuminated and unfortunately with light spill to a certain extent you too depending on how you place the flashlight,,,in some cases just plain old iron sights will work just fine.
 
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