Angle level

I found a very fun thing, angle + level. Only 15USD is needed in China

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I thought about buying one of them for my Prosport and AirKing. But I had come to the conclusion that lets say you are aiming at a squirrel field target or a real squirrel at that in a tree thats 10yds away but 30yds up a tree when you range him. So you take a shot at him on your 30yd aim point in your scope. You will miss him. So I learned that when shooting at something in a tree be it a target or animal that you do not at the angle distance the target/animal is away but range the base of the tree that the target/animal is in which is the true distance. So in the example above you put your 10yd aim point at the target/animal thats 30yds up and you will drop it. If you already knew this, then my apologies but hopefully this will help someone who doesn't know.
 
I thought about buying one of them for my Prosport and AirKing. But I had come to the conclusion that lets say you are aiming at a squirrel field target or a real squirrel at that in a tree thats 10yds away but 30yds up a tree when you range him. So you take a shot at him on your 30yd aim point in your scope. You will miss him. So I learned that when shooting at something in a tree be it a target or animal that you do not at the angle distance the target/animal is away but range the base of the tree that the target/animal is in which is the true distance. So in the example above you put your 10yd aim point at the target/animal thats 30yds up and you will drop it. If you already knew this, then my apologies but hopefully this will help someone who doesn't know.

That's not correct.

A steeply angled shot always needs less holdover than does a horizontal shot.

For typical scoped airguns, the holdover for a 10 yard horizontal shot is greater than it is or a 30 yard horizontal shot. If you use the 10 yard aim point, you will hit way high on that 30 yard (10 yard horizontal distance) angled shot.


 
I have the same one, different name, and I found that I could not see the level half of the time because it was too dark. I unscrewed the tip, took the bubble level out and drilled and Dremelled out a matching hole on the front of the view window. Now light comes through making it really easy to check your cant. Just a thought, fwiw

Nice simple idea. I don't use levels regularly these days because it has gotten hard to see them clearly but I did have a similar unit mounted on a long range CF rifle several years back. They can be helpful if one takes the time to learn to use it.
 
I thought about buying one of them for my Prosport and AirKing. But I had come to the conclusion that lets say you are aiming at a squirrel field target or a real squirrel at that in a tree thats 10yds away but 30yds up a tree when you range him. So you take a shot at him on your 30yd aim point in your scope. You will miss him. So I learned that when shooting at something in a tree be it a target or animal that you do not at the angle distance the target/animal is away but range the base of the tree that the target/animal is in which is the true distance. So in the example above you put your 10yd aim point at the target/animal thats 30yds up and you will drop it. If you already knew this, then my apologies but hopefully this will help someone who doesn't know.

That's not correct.

A steeply angled shot always needs less holdover than does a horizontal shot.

For typical scoped airguns, the holdover for a 10 yard horizontal shot is greater than it is or a 30 yard horizontal shot. If you use the 10 yard aim point, you will hit way high on that 30 yard (10 yard horizontal distance) angled shot.


How so? If the tree that the animal is in is 10yds away from you horizontally but the animal is say 30yds up that tree you still aim at it as if it is 10yds away. 
 
I thought about buying one of them for my Prosport and AirKing. But I had come to the conclusion that lets say you are aiming at a squirrel field target or a real squirrel at that in a tree thats 10yds away but 30yds up a tree when you range him. So you take a shot at him on your 30yd aim point in your scope. You will miss him. So I learned that when shooting at something in a tree be it a target or animal that you do not at the angle distance the target/animal is away but range the base of the tree that the target/animal is in which is the true distance. So in the example above you put your 10yd aim point at the target/animal thats 30yds up and you will drop it. If you already knew this, then my apologies but hopefully this will help someone who doesn't know.

That's not correct.

A steeply angled shot always needs less holdover than does a horizontal shot.

For typical scoped airguns, the holdover for a 10 yard horizontal shot is greater than it is or a 30 yard horizontal shot. If you use the 10 yard aim point, you will hit way high on that 30 yard (10 yard horizontal distance) angled shot.


How so? If the tree that the animal is in is 10yds away from you horizontally but the animal is say 30yds up that tree you still aim at it as if it is 10yds away.

If you were sighting along the bore-line, that would be true. But if you are sighting through an elevated scope, it won't work.

Your method does work OK when the horizontal distance is great (i.e. projectile drop is much greater than the scope height).