zero
what yardage is your zero? The highest point of trajectory ? I dont know what that would be, Im assumeing 40 yards.
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No it wouldn’t, it would go in a straight line and hit the moon. 😯
Not ot mention that if your were shooting prone, the pellet would go all the way around the earth an hit you dead in the Ass! 😯 😉
Yeah gravity sucks
without it though you could set your zero as far as you could see or cared to walk (float) to your target. But then again your pellet would have no weight
and your fpe would be shot to hell. So, yeah gravity sucks. But what ya gonna do?
Mike
–Stephen Wright
Usually when people do something a lot, especially as a hobby or profession, they tend to understand it very well.
I have always been amazed at just how few people in the shooting world don’t understand Ballistics. I’ve always been fascinated with external ballistics. Even hero on the forum, I once got into trouble with some very regular and knowledgeable posters because they didn’t understand that there is a difference between internal and external ballistics.
Scopes, parallax and focus is another area where shooters use the equipment constantly, yet seem to totally miss how Scopes work. It really helps to be able to get the most out of them.
You would be surprised just how many shooters think that the parallax adjustment is primarily for focus. Parallax and focus are two different things. But it does have to do with the focal plane, so a lot of confusion. And it is so damed simple!
And the all time Biggie! No Bullets do not rise when exiting the barrel 😯 😀 Otherwise intelligent people will argue against the laws of physics on this one till they turn blue in the face. And Never get it? 😕
Mike
Not quite –>
At a scope height of 3.0 inches, with Kodiaks traveling at a velocity of 1.000 fps, the Optimum Point Blank Zero (OPBZ) would be 57.29 yards.
(This would give you a vital zone radius of .50 inches between 19.35 yards and 63.80 yards.)
WooHoo! That’s waht I’m talking about. Thanks for the work up on it.
mike
I played around quite a bit with the numbers and I think a 50 yard zero is the one for me.
The above site by Zombie is the way to go. Move the target and it will give you hold under & hold over aim points for all yardages.
We’re on the same page – for a visual, please refer to the second diagram of pellet flight path/LOS I posted previously.
I was talking shooting/guns with a sniper and we get onto ballistics and he actually thought the pellet left the barrel and went up above the boreline – essentially I discovered he thought that because that’s how it looked on the pictures his instructor drew, the instructor had taught it properly but the physics of the situation escaped him.
I tried my best to explain it and he would not believe it. I saw his log and he could shoot, no question about it…. so long as the target was more than 10m away 😀
ZHH, I’m new to scopes but are we talking about the same thing? I’m talking about how the scopes LOS looks through the pellets flight path twice.
Not quite –>
At a scope height of 3.0 inches, with Kodiaks traveling at a velocity of 1.000 fps, the Optimum Point Blank Zero (OPBZ) would be 57.29 yards.
(This would give you a vital zone radius of .50 inches between 19.35 yards and 63.80 yards.)
Exactly Mike which is why (I believe) you won’t have a 20 and 40 yard zero if your shooting Kodiaks close to 1K. I think with that much separation between bore and L.O.S. it’s more like 20 and 80.
True enough. And this is the reason the line of sight and the line of bore can’t be parallel.. If you were looking Through the bore, yes it would be parallel. However, the pellet begin to drop instantly. The old wives tail that the projectile rises after it leaves the bbl. is just that. What make people think this is the cant to the scope erector tube required to zero the bore.
What makes our guns a little move difficult to zero is that with standard high mounts our center line of the scope is 3″ above the center line of the bore. Requiring even more cant. Or adjustment. It makes it appear that our guns are shooting a more arched trajectory than they really are due the amount of difference between the two. It really shows up at short ranges.
mike
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Ya got a point! 😆