The Firing Line Forums

Go Back   The Firing Line Forums > The Skunkworks > Gear and Accessories

Reply
 
Thread Tools Search this Thread
Old February 23, 2021, 10:52 AM   #1
Bart B.
Senior Member
 
Join Date: February 15, 2009
Posts: 8,408
Zeroing Scope's Adjustments

Why does setting the scope's elevation and windage adjustments midpoint in their mechanical limits make the line of sight point away from the scope's optical axis that's on the outer tube's center?

Last edited by Bart B.; February 23, 2021 at 11:14 AM.
Bart B. is offline  
Old February 23, 2021, 11:42 AM   #2
oldmanFCSA
Senior Member
 
Join Date: November 8, 2010
Location: WISCONSIN
Posts: 254
The adjustment range within the scope may not be perfectly centered with relationship to the outside tube.

Some scope base/ring combinations allow for windage adjustment by using side screws on basses to center the internal adjustment capability without using the internal adjustment.

Those of us that shoot ELR (Extra Long Range) use scope bases with "cant" built in to permit centering of scope distance range without using most of the adjustment range. Such as a 15, 30, 55, etc. MOA base Cant. (Front of base is thinner to tip scope forward).

This supposedly allows for best strength of internals and the most capability of any future adjustment for range or windage.

YMMV.
__________________
OldmanFCSA = "Oldman" at www.fcsa.org
FCSA Member, SCSA Member, NRA Member, & AMA Member
"Oldage & Treachery will overcome Youth & Skill"
oldmanFCSA is offline  
Old February 23, 2021, 11:50 AM   #3
Bart B.
Senior Member
 
Join Date: February 15, 2009
Posts: 8,408
Quote:
Originally Posted by oldmanFCSA View Post
The adjustment range within the scope may not be perfectly centered with relationship to the outside tube.
I've never seen a scope that was. They all quit moving the LOS left and down before reaching the LOF right and up mechanical limits.

Last edited by Bart B.; February 23, 2021 at 12:14 PM.
Bart B. is offline  
Reply

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 03:11 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2021, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2020 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Page generated in 0.04618 seconds with 10 queries