The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > The Smithy

Thread Tools Search this Thread
Old June 20, 2009, 12:22 AM   #1
Senior Member
Join Date: February 19, 2006
Location: Phoenix, Arizona
Posts: 199
sight adjustment

I am the proud owner of a S&W Sigma 9F. Contrary to what some folks say about them, I like my pistol and have only one complaint with it. It shoots a little low and to the left. After about 500 rounds, I still wind up with a nice cluster of target hits a little low and left of the bull. I am not a world class shooter, but I normally can hold my own as far as hitting the bulls eye. My problem is that I have never owned a pistol that needed the sights adjusted or moved to compensate for this left handed aim. Can I ask someone with the knowledge of how to do this to help me?
oldmaster111 is offline  
Old June 20, 2009, 06:38 AM   #2
Senior Member
Join Date: September 19, 2008
Posts: 4,678
The first thing I would try, to correct a handgun's low/left POI would be to try and not grasp it as hard the next time I fired it - as an overly tight RH gripping method can force/throw shots off to the left/low of the sights.
(If you shoot a pistol LH, then the opposite would apply)

If you do need to adjust your sights, there a few things to consider, first:
1) AFAIK, your gun's sights have no elevation adjustments, so if it's too much too low, you might want to try a different bullet weight/ammo to raise the POI. (diff ammo may also impact to a diff windage POI)
2) The sights on a pistol are CLOSE together, so ANY movement will result in a BIG change of the POI.
3) To adjust any gun's sights, move the REAR sight in the SAME direction you want to move the POI - but if moving a front sight, move it in the opposite direction.

Your pistol's rear sight should be mounted in a transverse dovetail slot in the slide, and can be adjusted to move the POI towards the right by tapping/drifting it SLIGHTLY to the right.
BEFORE doing so, mark the position of the sight's edge in relation to the slide with a pencil - so you can see how far the sight's been moved to the right while tapping.
Use baby steps, and firmly support the slide in a padded vise for the tapping - probably no more than 1/16" movement is going to be needed, if at all.

PetahW is offline  
Old June 22, 2009, 12:34 PM   #3
Senior Member
Join Date: February 19, 2006
Location: Phoenix, Arizona
Posts: 199
Thanks for the help. I'll try all of your suggestions.
oldmaster111 is offline  
Old June 24, 2009, 12:07 AM   #4
Join Date: March 4, 2005
Location: Ohio
Posts: 13,722
If you're not the world's best shot, be aware that it is not uncommon for many to have a slight flinch they can't identify through the disturbance of recoil. For a right-hander, low and left is the typical result. Try shooting it off bags and see if the POI corrects? Also, try the ball-and-dummy exercise, where a friend loads your magazine to include a dummy somewhere in the stack that you don't know the location of? Keep your eyes open and watch the sight alignment, and when the hammer drops on the dummy, see if you are holding the gun still through the fall of the hammer or if it dips slightly low and left?

Another thing to try is watching the front sight while shooting at a blank page. It will recoil up, then return. It is hard to grip so consistently that it comes down in exactly the same spot each time, but if it tends to land more to one side of the rear sight notch or the other, it is an indication that you need to rotate the gun slightly in your grip until it tends to average around the center.
Gunsite Orange Hat Family Member
CMP Certified GSM Master Instructor
NRA Certified Rifle Instructor
NRA Benefactor Member
Unclenick is offline  

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

All times are GMT -5. The time now is 08:48 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2017 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent:
Contact Us
Page generated in 0.04883 seconds with 7 queries