How to sight in laser grips?

[megatronrules]

I'm going to ordering a set of LG-405's from S&W for my 340M&P and had a question about how to properly sight them in. I've read that you should sight them in by aligning the laser dot so its right above the gun's front sight is this correct? If they are sighted in this way what yardage are they sighted in to? Also do these laser grips use two batteries or one? Doesn't one of the grip panels hols extra batteries?

 

[GunNut]

I sighted mine in to be just above the front sight at 20 feet or so, at the 7 yard range it was dead on.

I don't recall whether it takes 1 or 2 batteries so no help there.

 

[sohcgt2]

I prefer to align my laser grip with my barrel. I have a laser for boresighting that I install and then I check the space between the dots at the muzzle and then check at 25 yards to verify the same spread. The advantage to that alignment is when using the sights you do not see the laser, but if you need the laser it is pretty close to POI.

 

[kanewpadle]

Follow the directions if you still have them. If not, sight with the bore. Not the sights. I sight for 15 yards.

 

[bhk]

I prefer to sight mine for 20 to 25 yards. By doing this, you will never be off more than an inch or so from 0 to 40 yards, and anything beyond that is impractical with a j-frame. If you sight in too close, like 7 yards, you will be WAY off at longer ranges. You can never tell when a shot a longer range may be needed.

 

[DAdams]

http://www.crimsontrace.com/Home/Support/SightingInGuide/tabid/166/Default.aspx

This is the recommendation from the Crimson Trace website which has the answers to everything you want to know.

I change the battery once a year whether it needs it or not in my 642.
I think in almost 2.5 years I have changed the battery in the M&P once. I check it nightly when it goes from daytime location to nightime.
Batteries are inexpensive and easy to change. I have a couple spares in my range bag.

Be careful when you are cleaning your 340 that you don't get cleaning fluids on the laser lens, you can end up with a diffused beam. Not a real big deal, but it took me awhile to clean it back to an acceptable point. I now use the blue painters tape when cleaning now to cover the port.

Lasergrips are factory-sighted to approximate point-of-impact at 50-feet. Unlike most other laser sights, you can adjust them if needed by turning the tiny windage (side) and elevation (top) screws with the small hex wrenches provided with your Lasergrips.

A good starting point is to establish your normal sight picture and line up the laser dot with the iron sights — this may be all the adjustment needed. (“Sight picture” simply means evenly aligning the notch in your back sights with the post in your front sight in a level, straight line.)

For further tuning on the range, fire a few rounds at the target. After seeing where the bullets are hitting, you can adjust the laser to the actual point of impact. For example, if the laser is pointing at the center of the target, but the bullets are impacting low and right, move the laser down and to the right.

I didn't have to do anything with either of my sets. You will be hardpressed to know how far off they are without bench resting and even then you may be second guessing just due to "jitter".

I guess I like the bore sight comparative basis as the most accurate basis.

 

[armoredman]

Don't lose that whisker thin allen wrench, either! I guess I might think about changing my batteries, same set in for 3 years, still burning bright. Cheap at any office supply house.

 

[DAdams]

Fortunately

Don't lose that whisker thin allen wrench, either! I guess I might think about changing my batteries, same set in for 3 years, still burning bright. Cheap at any office supply house.
Today 10:36 AM

Crimson Trace will supply free allen wrenches and lens cleaning swabs on request.