Most Noob question ever (how to zero)

[GlockOwner]

Ok, so I got a new rifle with a Nikon scope and I don't know the math on how to guesstimate where the bullet will hit once the trigger is pulled. For example, if I go to a 15 yard range, and have the crosshairs on the bullseye, where should the bullet hit to have it hit bullseye when shooting at 100 yards? Is there a simple formula like 2 inches low at 15 yards is on point at 100 yards? I tried google, but I don't think my terminology is right, because I am not getting much.

 

[Younggun]

That depends on the bullet and the height of the sight over bore line.

Are you just trying to get on paper at 100, either way you will need to verify, and 15 is a really close starting point for a scoped rifle IMO.

With the sight height and ammo info, I could get you close using a ballistic calculator.

 

[breakingcontact]

Can look it up online. The Nikon ballistics app is cool and im sure there are others. Don't over think it. I know I start over thinking zeros and drops.

 

[BIGPAPIGREG]

just bore sight it and go shoot the damn thing to get it on the chili...................SHIT!

 

[itchin]

^ the best advice is above. "Don't over think it". On your scope;up down left and right adjusts the point impact up down left and right. Get on paper at a short distance then adjust at the range you want it to be dead zero on (100 yards?).

 

[Reaper277]

Are you asking how to get "sighted in" ???

 

[GlockOwner]

That depends on the bullet and the height of the sight over bore line.

Are you just trying to get on paper at 100, either way you will need to verify, and 15 is a really close starting point for a scoped rifle IMO.

With the sight height and ammo info, I could get you close using a ballistic calculator.

Googling what "sight height" means....brb.....ok I don't have anything to measure exact, but it looks like about 1.75" is the sight height. On the box of ammo is the following:

Velocity (FPS)
- Muzzle = 2950
- 100 yds = 2760

Energy (ft-lbs)
- Muzzle = 3480
- 100 yds = 3035

 

[GlockOwner]

I'll check out that Nikon app and see if I can figure it all out.
I tried bore sighting it on the 100yd range....couldn't see any dot, so I figured you could sight it at a short distance, and make it sight in low or high or whatever, and the math would mean it would hit center at the further distance.

 

[GlockOwner]

Over thinking is my specialty

 

[breakingcontact]

What caliber?

 

[GlockOwner]

300 WinMag

 

[breakingcontact]

I'll check out that Nikon app and see if I can figure it all out.
I tried bore sighting it on the 100yd range....couldn't see any dot, so I figured you could sight it at a short distance, and make it sight in low or high or whatever, and the math would mean it would hit center at the further distance.

Send me the caliber and specific ammo and ill put it in my app

 

[breakingcontact]

Oh and what specific scope.

 

[BIGPAPIGREG]

man y'all scare me

 

[35Remington]

Ok, so I got a new rifle with a Nikon scope and I don't know the math on how to guesstimate where the bullet will hit once the trigger is pulled. For example, if I go to a 15 yard range, and have the crosshairs on the bullseye, where should the bullet hit to have it hit bullseye when shooting at 100 yards? Is there a simple formula like 2 inches low at 15 yards is on point at 100 yards? I tried google, but I don't think my terminology is right, because I am not getting much.

Do not sight that scope in at 15 yards unless it has an adjustable focus knob with a 15 yard setting (it most likely does not). Google your scope to see what its minimum "parallax free" distance is (usually 50 or 100 yards). This is the distance at which your precise cheek weld will not change the point of impact. Aim at a target 5 feet away and move your head around 1 to 2 inches. See how the crosshairs move also? That's the result of parallax.

If it's a bolt rifle, do like Greg suggested. Remove the bolt. Put the gun in a vise or other stable position. Look down the barrel until you see your target, then stabilize the rifle. Then tweak your scope to the crosshairs are on the target. That'll get you close.

 

[Younggun]

I'll check out that Nikon app and see if I can figure it all out.
I tried bore sighting it on the 100yd range....couldn't see any dot, so I figured you could sight it at a short distance, and make it sight in low or high or whatever, and the math would mean it would hit center at the further distance.

You can, in theory. However, the closer you are in the initial sight in the further off you will be at 100yards, probably within a few inches though if the data is accurate.



Bore sighting: put the rifle in a stable rest and pull the bolt out. Look straight through the bore and adjust the rifle so the paper is in the center of your view. Adjust scope to center of paper.




For the app I would also need to know which bullet you are shooting. Or if you can give me the load (ex: federal fusion Xxxgr) I can pull it up.

It won't be exact because the actual velocity will most likely be different from what's on the box.

 

[Younggun]

man y'all scare me

Don't be racist.

 

[BIGPAPIGREG]

Don't be racist.

it's just that.........................ahhhhhhhhhhhh OK.






NOW can he just got to the range and shoot the damn thing?

 

[GlockOwner]

Lmao! Why the hell did I not think to just look down the barrel and make the scope point at that....*sigh*....I need the kind of help you guys just can't give...any numbers for a specialist? lol

The bullet is a 180 Grain Bonded Soft Point from a box of Federal Power-Shok "Mossy Oak Deer Thugs".

 

[Younggun]

Lmao! Why the hell did I not think to just look down the barrel and make the scope point at that....*sigh*....I need the kind of help you guys just can't give...any numbers for a specialist? lol

The bullet is a 180 Grain Bonded Soft Point from a box of Federal Power-Shok "Mossy Oak Deer Thugs".

I was gonna pull data for it but it seems the Deer Thug rounds are exclusive to Walmart and don't match the standard loads. Haven't found the actual bullet used so can't get the BC for it.

Oh well, was mostly just satisfying my own curiosity.