Angle Shooting Simplified..

[JLA]

Originally Posted by Jim K

"Bullets travel too fast to take into account the distance being up or down hill..."

That is not quite true either, but I refuse to get in any deeper. And pardon me, but didn't you just negate your whole argument? You claimed to have found a precise number that will give a holdover distance, apparently without regard to velocity, bullet shape, air resistance or any of those other nasty little details. Now you say that they do count, which means your precise figure is still invalid.

Hi, Goofy,

Most of that is perfectly correct. But how does it jibe with JLA's contention that gravity only affects the bullet while it is travelling the distance of line b and not at any other point in its own (curved) path?

Jim

P.S. With that, I give up. That darned pig just won't sing.

JK

No I did not negate my whole argument.. And I did not find 'A' precise number, I simply put 2 and 2 together using things I learned 10 years ago in HS and found an easy to use chart full of precise numbers that help to calculate holdover distance quickly in the field.. Again, THIS TOPIC is for determining holdover when shooting over an angle.. You still have to have a range card put together for the weapon system you are using to shoot over the angle so you can adjust the optics to compensate for THE HOLDOVER DISTANCE... Again, multiplying the cos of the angle by the line of sight ONLY gives HOLDOVER which ONLY accounts for the linear distance the bullet is affected by gravity, NOT gravity itself or any other variable... YOUR RIFLE/CARTRIDGES specific ballistics performance, which is a good idea to have on a range card taped to your weapon, calculates the rest of the variables just like shooting over a level distance. It seems pretty simple to me, and more and more folks chiming in seem to get it too. SO.. take it if you can use it, if you dont understand, feel free to disregard, I wish I could help you to understand because it really is useful information but apparently I am better at figuring out stuff like this while laying in bed at night than I am at explaining Trigonometry to a machinist..

[JLA]

Originally Posted by wyoredot

I'm heading out to the fabled land 'o plenty dumdogs. My trusty .257 Rbts and I intend to do crowd control. I will apply these things I have lernt when I try the 250 and 300 yd shots. I think it will be a blast. For me anyway.

Please post a range report, some hands on application may help put the facts to rest..

Thanks Wyo..

[brad87]

I think what he's failing to understand is the fact that the parabolic curve of the bullets path through the atmosphere is already taken into account and is no longer an issue because you already sighted your rifle in at the range prior to taking it hunting.

When you can say that my rifle is sighted in for 200 yards, and I know at 250 I have 3 inches of drop, and at 300 I have 6 inches, etc. etc. etc... then once you find the distance using JLA's little math thing (btw, I HATED trig and geometry, I'll stick to algebra, thanks) your rifle will take care of the rest. The 300 yard line of sight thing he mentioned later on that came out to be a 261 yard equivalent shot, yeah, he just holds 3 inches high instead of 6 inches, because he knows how his gun shoots.

[JLA]

[The_Rifleman]

Originally Posted by Jim K

Nevermind, I am too busy to even think about all the false assumptions, but try this one. How does your system deal with the various trajectories for different ammunition?

Jim

I see what you mean JLA. His comment displays a total misunderstanding of the concept.

[Zane71464]

FINALLY......Found this thread Josh and thank you for your time and knowledge on this subject. The "avaerage" hunter-shooter" that Ive ever talked to in person never heard of such a thing. Not all, I stand corrected, but most and this was new to me as of just a couple years back when I believe it was you that got me into shooting the .22lr out to 300yds.
Well, Ive been digging for info and trying to figure this whole angle shooting out and pretty much have, sept, got a hugh problem with 'one" distance in particulair. I'll have to dig up a pic or two to decribe what I'm into.
It lasers 149 yards, but with my rifle trajectory, it's 250-300yds! I'll dig up a pic or two to better explain and with some help, might just get this long time headache of trying to figure this out understood!!! It's been bothering me for a couple years now. I'll dig up a pic er two....