uphill/ downhill chart
 

Thought some of you might be intersted to see just how close an uphill shot is to a downhill shot.

This chart is for MY SETUP and will vary slightly from setup to setup.


The numbers down on the left collum are yardage and the numbers across the top are the degree of the angle.

RE: uphill/ downhill chart
 

Degree of angle? Wouldn't it relate better to everyone if the number across the top was angles related to treestand height? (I know it does but what height=what angle? ) Help us math challenged guys out. ;)

RE: uphill/ downhill chart
 

That is the way the program prints it out for target shooters.That way they can use there little angle finder thingies and know the exact yardage.:D


I can see the yardage of the slant angle and the horizontal angle on the computer but can't print it out that way,it is a graph.


I was just wanting people to see that the difference in the uphill and downhill shot was very similar.

RE: uphill/ downhill chart
 

OK, what's a "little angle finder thingy" look like? Sounds kinda cool. :)

RE: uphill/ downhill chart
 

I should have known someone would make me look it up.:D

It is called a clinometer and what some will due is place an arrow tube on the side of it and look through the shaft to the target,then look at what angle they are on,then use the chart for yardage.


This is mainly in the long distance arenas for known distanceand rangefinders are still not allowed to the best of my knowledge.So the newer rangefinders that adjust for it can't be used.
I could be wrong about that though.




If I think about it,when I get to work tomorrow,I will figure a few scenarios to compare.That is where my scientific calculator is at.

This is what it looks like on my screen.Looks like if I had excell,it might print this screen.

RE: uphill/ downhill chart
 

OK, you stick to your scientific calculators... and I'll stick to writing the word "thingy." ;)

RE: uphill/ downhill chart
 

[8D]


Just don't play with it.:D

RE: uphill/ downhill chart
 

Ok,I worked a few of the scenarios and the triangles represent the angle and how high you would have to be in a tree and what to compensate for.


The box to the right of the triangles is how high you would have to be for this to work out.


As you can see,you would have to be quite high and have a fairly steep angle for there to be a NEED for compensation.


AND the charts show how uphill is almost identicallto thedownhill shots on the shorter distances.


This kind of information would be extremely usefull for those that hunt in the hills or mountains.

RE: uphill/ downhill chart
 

Physics show that uphill and downhill would be identical. Any differences shown are either a slight error in the program or a factor of the program rounding off.

RE: uphill/ downhill chart
 

You are not accounting for sight paralax.

There is a difference,but VERY SLIGHT.As you get into the longer ranges,other factors come into play as well.

Some interesting info.

http://www.archersadvantage.com/TipSheets/UpDownHill.htm

RE: uphill/ downhill chart
 

most calculations (assuming you are in a tree stand) you can then assume the tree at the ground is a 90 degree angle, so A(squard) +B (squard) = C (Squard)....this should give you a close enough yardage value to make shots out to about 50 yards or so regardless of tree height (for flat ground)........

RE: uphill/ downhill chart
 

You pastin that chart to the back of your bow when you hunt?

RE: uphill/ downhill chart
 

Math makes my brain thingy hurt! [8D]

RE: uphill/ downhill chart
 

don't think u should paste that on your bow but for those who hunt on the ground in the hills glancing at that chart and putting some figures in the back of your brain...and knowing your angles is not a bad idea.......for instance, before i thought aboutall of these calculations or considered them,my brother shot at and missed a 3x3 (western standards) and had him ranged at 50 yrds down hill and shot right over his back.....the angle was approximatley 35 degrees or so from level so he should have shot it for about 40 or even 38 yards....

after that i did calculations and we both now know approximately what our bows will be shooting at different angles..up or down..

RE: uphill/ downhill chart
 

I agree.


There is a common misconception about shooting from a deer stand that gravity speeds the arrow up,this isn't what is happening at all.As proof,the uphill shots are almost identical.


The chart also show that for normal hunting conditions out of a deer stand,it isn't worth the worry.


BUT,as JNTURK points out,there are times when this is VALUABLE information.I too missed a nice buck years ago because I didn't understand how uphill shots were affected.

RE: uphill/ downhill chart
 

to comment on TFOX.....for tree stand hunting with moderate flat ground under you there is not much to worry about yardage...if you are on a hill then yes you should consider looking at the chart or do some math to check what yardage you should use..