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How to change sights recommendations






NYECOGunsmith

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#22
That was an interesting read Nyco. My brother is thinking of swapping the sites on his sig. This cleared up some questions i had.
IF all that didn't put you to sleep, you must have a terminal case of insomnia!
Holler if you or your brother needs help with the calculations or anything else.
 

NYECOGunsmith

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#23
IF I can ever figure out how to post an Excel Spreadsheet here, I just created one that will let you plug in the numbers and it will calculate the correction factor for you, for any sight radius, and distance the bullet's POI is off the POA, and for any distance from the muzzle to the target.
Don't think the forum software will let me post it and have it work though.
 

NYECOGunsmith

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#24
Tried to post the Excel doc here, no soap.
So, found one already on line for ya, From Dillion Precision.
Where it says Distance From Centerline, that's where you put the distance in inches that the bullet was off your Point of Aim (POA) by.
Put the distance from the target to the muzzle in , in yards, and it will show the inches, or if you know the inches, just put that in, and put in the sight radius (distance between front sight and rear sight) and SHAZAM, it will show you the correction factor, rounded to the nearest thousandth of an inch.
Here I have screen snapped what it shows when I use the numbers from my previous example, sight radius of 5 inches, distance to target of 25 yards ( I put in the 900 inches on this first one) and the amount the POA/POI was off, 3 inches.

Sight Correction Calculator (dillonprecision.com)

1631845329502.png

Here it is again, I changed the sight radius to 6 inches, and put in the distance of 75 yards, it calculated the inches (2,700) for me.

1631845497267.png

Hope this helps.
 

vw68j

uber Member
#25
Tried to post the Excel doc here, no soap.
So, found one already on line for ya, From Dillion Precision.
Where it says Distance From Centerline, that's where you put the distance in inches that the bullet was off your Point of Aim (POA) by.
Put the distance from the target to the muzzle in , in yards, and it will show the inches, or if you know the inches, just put that in, and put in the sight radius (distance between front sight and rear sight) and SHAZAM, it will show you the correction factor, rounded to the nearest thousandth of an inch.
Here I have screen snapped what it shows when I use the numbers from my previous example, sight radius of 5 inches, distance to target of 25 yards ( I put in the 900 inches on this first one) and the amount the POA/POI was off, 3 inches.

Sight Correction Calculator (dillonprecision.com)

View attachment 106578

Here it is again, I changed the sight radius to 6 inches, and put in the distance of 75 yards, it calculated the inches (2,700) for me.

View attachment 106579

Hope this helps.
Thanks!
 

Luxom

Obsessed Member
#26
Yeah thats actually a pretty handy webtool to have. Thanks!
It doesnt seem as complicated as most people would think as long as you understand the formula, but that calculator makes it pretty simple and straight forward on what you need to do.
 

Earthquake

Obsessed Member
#27
some times if you only want to move something a small amount in just about any size/kind of press apply some tension and give it a light smack with a plastic mallet, it will usually jump just a small amount. this works really well when pressing a barrel into a AK front trunnion on a hydraulic press, just put some tension on the barrel and give the press a smack with a hammer anywhere on the press.

eQ