Up and down hill shooting

[califoriahunter]

Does anyone have the equation to figure the range when shooting up and Down hill

 

[Franklin]

The cosine of the angle multiplied by actual distance.

 

[califoriahunter]

Cosine of the angle how do I figure that out?

 

[trebark]

It's actually more accurate to apply the cosine to the dope.

 

[silvertip-co]

Hold low. ALWAYS. The actual distance is always less than your rangefinder says( unless you have a ARC rangefinder). When I shoot up or downhill more than 15deg I usually just reduce the distance by 12% and that works pretty well as a rule of thumb. You can use a search engine like www.wikipedia.com to find out what cosine is. ( adjacent angle / hypotenuse if I recall correctly). All that is out the window though if you have tape on your muzzle.

 

[deerhunter13]

Hold low. ALWAYS. The actual distance is always less than your rangefinder says( unless you have a ARC rangefinder). When I shoot up or downhill more than 15deg I usually just reduce the distance by 12% and that works pretty well as a rule of thumb. You can use a search engine like www.wikipedia.com to find out what cosine is. ( adjacent angle / hypotenuse if I recall correctly). All that is out the window though if you have tape on your muzzle.

Why would that be?

 

[CSPSgt]

Here is an article from Grand Slam Club Ovis. They probably do as much up/down shooting as anyone.

Grand Slam Club / Ovis :: Uphill Shooting, by Zack Skochko

Then go here:

Angle Cosine Indicator

 

[sp6x6]

Technical articles section at top of this site has a whole article on this.Tape on barrel will have no affect.They shot w/tape on Long Range Pursuits and made long hits on steel.Ihave taped for 30 yrs and not caused a miss.