The Liberal Gun Club Forum

There is a way to zero a gun at three distances. What is it?
(standard, rifled tube. standard ammo. no fins)

Edit:
Oh yeah....the zero's are per bore-sight. It won't work with any amount of parallax. Sarah Palin might have experience

I don't know about three distances, but two is easily doable. This is because of the trajectory if the bullet in flight as it arcs up it will cross the sight line at a relatively near distance, say 25yds, them it will continue to rise until it reaches it's highest point (roughly 3" @ 100yds for an ak) then it will cross the sight plane again at say 200yds. Thus you have your rifle zeroed for both 25 & 200yds, with a known point of impact at three distances.

Is this what you meant? I'm sure some if the other guys will explain this more eloquently than I, and they'll be along shortly.

Easy. Well, not for any distance, but a mile or two you should be good enough. First, you have to be in a zero G environment....

Amir explained distance A and B.

Distance C is zero yards. You walk right up to the target and jam the end of the barrel on the point you want to hit and fire.
There. Three distances at which your bullet will hit where you are aiming. What do I win?

Alternatively, using multiple scopes, you can zero for 2X+1 distances where X is number of scopes. Two distances for each scope plus the point blank distance of zero yards. With that method, you are only limited by how many scopes you can pack onto the rifle.

JayFromPA wrote:Amir explained distance A and B.

Distance C is zero yards. You walk right up to the target and jam the end of the barrel on the point you want to hit and fire.
There. Three distances at which your bullet will hit where you are aiming. What do I win?

Alternatively, using multiple scopes, you can zero for 2X+1 distances where X is number of scopes. Two distances for each scope plus the point blank distance of zero yards. With that method, you are only limited by how many scopes you can pack onto the rifle.

Not the solution I was thinking of, but interesting nonetheless! A quiver of scopes on one gun; cool. On a rifle, would make for an interesting stock (supporting varying cheek-welds).

I added a bit to the original challenge above. :-)

ArmedLeftist wrote:There is a way to zero a gun at three distances. What is it?
(standard, rifled tube. standard ammo. no fins)

Edit:
Oh yeah....the zero's are per bore-sight. It won't work with any amount of parallax. Sarah Palin might have experience

Bore sight. Take away parallax means, I believe, no scope. So, shooting in the raw.

Are you talking about measuring and plotting trajectories? A gun pushes a weight of X at an angle of Y at velocity Z, without wind and at air density D thus providing a constant of friction F, therefore the bullet will land at point A? Change the angle and bullet lands at point B, change again and it lands at point C, all points are different distances from the shooter.

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Other possibility is you are firing straight down into the gravity well of the earth which would give any distance you chose, firing straight up which would technically give you accuracy to a distance of "Infinity", and as I mentioned earlier a distance of zero if the target and muzzle were in contact.

JayFromPA wrote:

ArmedLeftist wrote:There is a way to zero a gun at three distances. What is it?
(standard, rifled tube. standard ammo. no fins)

Edit:
Oh yeah....the zero's are per bore-sight. It won't work with any amount of parallax. Sarah Palin might have experience

Bore sight. Take away parallax means, I believe, no scope. So, shooting in the raw.



Other possibility is you are firing straight down into the gravity well of the earth which would give any distance you chose.

That's the one I was thinking. The Sarah Palin reference? The Hole of the Earth shooting (from her helicopter) into the gravity-well of the earth.

Thanks for playing!