OpticsTalk by SWFA, Inc. Homepage SWFA     SampleList.com
Forum Home Forum Home > Scopes > Rifle Scopes
  New Posts New Posts RSS Feed - Sighting in scope
  FAQ FAQ  Forum Search   Events   Register Register  Login Login

Visit the SWFA.com site to check out our current specials.

Sighting in scope

 Post Reply Post Reply
Author
Message
ripper View Drop Down
Optics GrassHopper
Optics GrassHopper


Joined: February/24/2008
Status: Offline
Points: 3
Post Options Post Options   Thanks (0) Thanks(0)   Quote ripper Quote  Post ReplyReply Direct Link To This Post Topic: Sighting in scope
    Posted: April/13/2008 at 22:13
Hi everyone, I have a ouestion about bore sighter's and scopes. I have mounted a US Optics scope on my Springfield M1A.  The scope is a SN3  1.8x10 power variable. I am using a Magentic bore sighter, it is the Grid type with the little boxes. Each box is 4MOA at 100 yards. I installed the scope and looked through it and the bore sighter. Made the adjustments and centered the cross-hairs of the scope on the center-line of the grid for windage and elevation. Went to a 25 yard indoor range to see where it was hitting. Took a 3shot group and was hitting about 3inches to the right of the bulls-eye. My knobs are 1/4in. a click at 100 yards, I turned my windage knobs 16 clicks or 4MOA of left windage and was hitting center of bulls-eye. I put the bore sighter back on the rifle and looked at the grid again and my cross hairs of the scope were 4MOA TO the right of Center of bore sighter center line. My ouestion is when you turn your knobs on your scope to move point of impact of the bullet to left, why does the cross hairs move to the right on the boresighter? I am new to scope shooting so please bear with me I am still learning how. This is my first time setting up a scope and using a bore sighterHowdy
Back to Top
Sgt. D View Drop Down
Optics Master Extraordinaire
Optics Master Extraordinaire
Avatar

Joined: February/20/2008
Location: North Carolina
Status: Offline
Points: 4525
Post Options Post Options   Thanks (0) Thanks(0)   Quote Sgt. D Quote  Post ReplyReply Direct Link To This Post Posted: April/13/2008 at 23:36
I have no experience with bore sights but you have found some folks that I'm sure can help. Once you get your rig going let us know what you think of the US Optic. I'm all but convinced of getting a SN3 real soon. And I wanted to say welcome to the OT.
Take care of Soldiers, Show em how its done and do it with em, Run to the Fight & and hold your ground! I die my men go home! If you're a NCO and this ain't you. GET OUT! GOD BLESS AMERICA!
Back to Top
8shots View Drop Down
Optics Jedi Knight
Optics Jedi Knight
Avatar
Lord Of The Flies

Joined: March/14/2007
Location: South Africa
Status: Offline
Points: 6253
Post Options Post Options   Thanks (0) Thanks(0)   Quote 8shots Quote  Post ReplyReply Direct Link To This Post Posted: April/14/2008 at 04:51
Ok, so your bullet impacts to the right of the crosshair. You  physically move the crosshair right by dialing what is indicated as left on your dial. The image in a telescope is originally seen wrong way around and upside down. It is corrected by the second focal plane or erectors. So what your eye sees is not what you get. Smoke and mirror stuff or optical science, take your pick. 
Back to Top
Dogger View Drop Down
Optics Jedi Master
Optics Jedi Master
Avatar

Joined: January/02/2007
Location: Ontario, Canada
Status: Offline
Points: 8902
Post Options Post Options   Thanks (0) Thanks(0)   Quote Dogger Quote  Post ReplyReply Direct Link To This Post Posted: April/14/2008 at 07:54
Just as 8shots said - move your adjustments (when viewing your boresighter grid) opposite to what you would usually do when shooting at a target
God save the Empire!
Back to Top
 Post Reply Post Reply
  Share Topic   

Forum Jump Forum Permissions View Drop Down

Forum Software by Web Wiz Forums® version 12.01
Copyright ©2001-2018 Web Wiz Ltd.

This page was generated in 0.138 seconds.