AmericanLongRifles Forums

General discussion => Gun Building => Topic started by: old dog on September 17, 2020, 09:11:04 PM

Title: sight height formula
Post by: old dog on September 17, 2020, 09:11:04 PM

Years ago I saw a formula for estimating the height of the front sight.  Just a ballpark number to start out with.  I cannot find it anywhere.  Anyone recollect what it might be?
Old Dog

Title: Re: sight height formula
Post by: rich pierce on September 17, 2020, 09:40:00 PM

I measure it calculate the height of the top of the rear sight above the bore, subtract about 0.025”, make the top of the rear sight that high above the bore, and go from there.

Title: Re: sight height formula
Post by: Mark Elliott on September 17, 2020, 10:17:36 PM

I have a calculator (an Excel spreadsheet) that you can download from my web site.  It is the spreadsheet that I used to set my sight heights.   It usually got me in the rings at 50 yards with the first shot. 

http://www.markelliottva.com/wordpress/2014/04/front-sight-height-calculator/

Title: Re: sight height formula
Post by: old dog on September 17, 2020, 10:54:47 PM

Thank you gentlemen.
Old Dog

Title: Re: sight height formula
Post by: old dog on September 17, 2020, 11:07:11 PM

Thanks for sharing Mark.  Very helpful.
Old Dog

Title: Re: sight height formula
Post by: Daryl on September 18, 2020, 02:47:43 AM

Seems to me, when putting sights on a rifle, I always started with them equal height above the centre of the bore,
 then did any filing necessary at the range after working up a load.