Up/Downhill corrections

[pstimac]

Originally Posted by jwp475

If you are correct then why doesn't Exball ask if the angle is uphill or downhill?
IMHO

I don't know. I don't use Exbal, but maybe there's a way you can enter up or down angles? Or maybe Exbal left something out???

Originally Posted by jwp475

I am going with Exbal as its accuracy is proven IMHO

I was just trying to help out. Stick you head in the sand if you want but here's the link, try it for yourself. http://www.eskimo.com/~jbm/calculations/traj/traj.html


SHOOTING UP: Gravity is working against the direction of the bullet when it's shot upward. This slows it down slightly and effects the trajectory which changes the point of impact lower relative to the drop using the same angle shooting down. The change is so slight that you don't really see a significant difference until your target is very far away - beyond a 1000 yards for most loads.

SHOOTING DOWN: Gravity is working in the same direction as the bullet when it's shot. This speeds it up slightly and effects the trajectory which changes the point of impact higher relative to the drop using the same angle shooting down.

It's Physics. I didn't make this up. You don't really see the effect until after 1000 yards. Make sure you change the range to 2000 yards otherwise the difference will only be a inch or two at a 1000 yards. If you want to see the effect even more, change the range to 3000 yards.

jwp475 and MagMan I tried to use small words, but if all this is too much for you to wrap your heads around then just continue to ignore physics and take Exbal's apparent lack of angle direction input as gospel proof that what I'm saying is wrong. I wouldn't want you to actually have to think about something.

[jwp475]

Originally Posted by pstimac

I don't know. I don't use Exbal, but maybe there's a way you can enter up or down angles? Or maybe Exbal left something out???




I was just trying to help out. Stick you head in the sand if you want but here's the link, try it for yourself. http://www.eskimo.com/~jbm/calculations/traj/traj.html


SHOOTING UP: Gravity is working against the direction of the bullet when it's shot upward. This slows it down slightly and effects the trajectory which changes the point of impact lower relative to the drop using the same angle shooting down. The change is so slight that you don't really see a significant difference until your target is very far away - beyond a 1000 yards for most loads.

SHOOTING DOWN: Gravity is working in the same direction as the bullet when it's shot. This speeds it up slightly and effects the trajectory which changes the point of impact higher relative to the drop using the same angle shooting down.

It's Physics. I didn't make this up. You don't really see the effect until after 1000 yards. Make sure you change the range to 2000 yards otherwise the difference will only be a inch or two at a 1000 yards. If you want to see the effect even more, change the range to 3000 yards.

jwp475 and MagMan I tried to use small words, but if all this is too much for you to wrap your heads around then just continue to ignore physics and take Exbal's apparent lack of angle direction input as gospel proof that what I'm saying is wrong. I wouldn't want you to actually have to think about something.

My head is not in the sand did you read Shawns reply or not?

Your smart ass reply about typing slow isn't impressing at all..
What is your qualifications in Physics?

I dought that Exball left anything out, it is probable the most trusted and used program by experinced Long Range Hunters out there. Apparently your head is in the sand. I'll take my computor based Exbnall over the free online programs any day.

[jwp475]

I would invite you to use Exball but it is on my computer and Exball has to be purchased also my Dell Axiom Pocket computer has the Exball program on it to take into the field, try taking this one into the field, JBM - Calculations - Trajectory ain't happening. I've been aware of that web site for several years, and will not trade Exball for it..

[pstimac]

Originally Posted by jwp475

I dought that Exball left anything out,

Let's see... I just checked Exbal's site and see that they don't ask for a latitude or compass direction of your shot... so they are not taking the coriolis effect into account.......hey... maybe you can use this as proof that the earth is not round at your next "Flat Earth Society" meeting.

Originally Posted by jwp475

I'll take my computor based Exbnall over the free online programs any day.,

-- and this proves that online programs are not computer based.

Originally Posted by jwp475

Your smart ass reply about typing slow isn't impressing at all..,

... what did I say about your typing?

[jwp475]

You said that you were typing slow for us to under stand, I guess that I am typing too fast for you.
Coriolis effect would be realavent if I was shooting a 105 Howitzer but I'm not. Again the Smart ass reply about the flat earth.
What is your Physics qualifications?

Again you have offered no proof, yet you ignore Shawn and he teaches Long Range to Civillians, Law Enforcement and Military what is your qualifications, beside being a samrt ass..

[pstimac]

Originally Posted by jwp475

What is your Physics qualifications?

I can read.....and do the math.

[wildcat]

Pstimac, let me give you some advice. Don't let this guy get on your nerves, don't even post a comment back to him.

W.