zero distance

[jlynch75]

I learned very young 'Shoot up aim up, shoot down aim down.' We have a lot of steep hills where I hunt, it works for me.

 

[Busta]

"Aim lower. An article on “How to Compensate for Uphill/downhill Shooting” by Firearmsite.com states, “When shooting uphill, you have to hold your sights below the target in order to hit the target. A similar effect occurs when shooting downhill. To compensate for shooting downhill, you must also aim below the target.Oct 2, 2012"

http://customturretsystems.com/shooting-at-angles-should-you-aim-high-low-or-dead-on/


"First, shooting uphill or downhill can have a strong effect on the trajectory of any bullet, always causing the bullet to shoot high relative to the bullet path for level fire. This effect grows larger as the slant range distance grows longer and the elevation angle grows steeper."

http://www.exteriorballistics.com/ebexplained/5th/33.cfm

 

[45-70]

"Aim lower. An article on “How to Compensate for Uphill/downhill Shooting” by Firearmsite.com states, “When shooting uphill, you have to hold your sights below the target in order to hit the target. A similar effect occurs when shooting downhill. To compensate for shooting downhill, you must also aim below the target.Oct 2, 2012"

http://customturretsystems.com/shooting-at-angles-should-you-aim-high-low-or-dead-on/


"First, shooting uphill or downhill can have a strong effect on the trajectory of any bullet, always causing the bullet to shoot high relative to the bullet path for level fire. This effect grows larger as the slant range distance grows longer and the elevation angle grows steeper."

http://www.exteriorballistics.com/ebexplained/5th/33.cfm

ones closer another is farther , that simple, simple right angle

 

[Busta]

Not a simple right angle, but a simple right triangle.




Shooting down from B to A, the line of sight is c, the true ballistic range is b.

Shooting up from A to B, the line of sight is c, the true ballistic range is b.

The difference in elevation is a.

Simple as that.

 

[45-70]

you win!!!!!!!!!!!!!!!!!!!!!!!!!!

 

[alternate]

At typical eastern hunting ranges of 200 yds or (way) less, I would venture a guess that a lot more hunters missed deer by overcompensating for slopes than missed by ignoring the slope altogether.

 

[GM54-120]

I would guess more hunters have missed by sighting in at 50 yards and using calculations/apps/BDCs ect ect to shoot further than they have actually practiced shooting.

 

[Far Sighted]

270 Winchester 400 yds 0 deg (level) - 39.98 in
Sierra’s 140 gr. 20 - 39.94
SBT GameKing, 45 - 39.90
2900 fps Mzl Vel 60 - 39.89

Here is an example of change in slope and the resulting change in bullet drop.