Garage Gazette

TOOLS AND THE SHOP => GUNSMITHING/ KNIFEMAKING => Topic started by: muddy on July 28, 2020, 09:26:56 PM

Title: Sighting in Red dot
Post by: muddy on July 28, 2020, 09:26:56 PM

Well my father recently bought a 10/22 and out a red dot on it.

Well a couple of weeks ago he broke both his wrists.....

So he asked me to sight it in. The sighting in isn't my question. All else fails I can read the instructions. :))

My question is he wants it sighted in at 1" high at 50 yrds. I believe my club only has 100 yrd targets.


How would the trajectory equal out at 100 yrds? If I think right it should be about 4" low at 100?




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Title: Re: Sighting in Red dot
Post by: goodfellow on July 29, 2020, 11:07:10 AM

Sounds easy, but there are some important variables that you need to consider -- even for a 22LR

start here, using the data from your ammo.

http://www.shooterscalculator.com/ballistic-trajectory-chart.php

Title: Re: Sighting in Red dot
Post by: Matt_T on July 29, 2020, 01:21:47 PM

You can figure it based on the ammo specs and barrel to sight centerline distance. But depending on how fast that ammo shoots in your gun that trajectory could be off. Best way to get the gun hitting where your Dad wants is to sight it in at 50 yards. If you can't do it at the club just ride out to the farm.

Title: Re: Sighting in Red dot
Post by: Rusty on July 29, 2020, 01:42:20 PM

Pistol range?

Title: Re: Sighting in Red dot
Post by: muddy on July 30, 2020, 07:02:57 PM

Well I drove by both the ranges I have available and both have 50 yrds targets. So were good to go!

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