LockNLoad Outfitting  Central Alberta Outfitter A lightweight orange vest that complements your technical hunting apparel!

Author Topic: Shooting at deer downhill question  (Read 2495 times)

Offline Igor

  • Virtual Campfire
  • Trade Count: (+1)
  • Scout
  • *
  • Join Date: Apr 2012
  • Posts: 294
  • Location: Lake Stevens, WA
Re: Shooting at deer downhill question
« Reply #25 on: May 11, 2017, 05:20:17 PM »

Offline yakimanoob

  • Virtual Campfire
  • Trade Count: (0)
  • Scout
  • *
  • Join Date: Jun 2016
  • Posts: 363
  • Location: Naches
Re: Shooting at deer downhill question
« Reply #26 on: May 11, 2017, 09:47:40 PM »
Here is good article:

Gravity is acting pirpendicular to horizontal not line of sight.

Certainly, yes, gravity always acts towards the center of the earth. When we talk about bullet "drop" when shooting at an angle, A, we're speaking in reference to the line of sight, so to figure out that drop in relation to line of sight, we have to consider how gravity is acting in relation to line of sight.

So we split the force of gravity into its component vectors, with one component equal to m*g*cos(A) acting perpendicular to the line of sight, and the other component equal to m*g*sin(A) acting along the line of sight. These two component vectors sum to equal the total force of gravity equal to  m*g acting perpendicular to horizontal as you stated.

The technique magnum_willys (and the article you posted) described only accounts for the first component that acts perpendicular to the line of sight and ignores the second vector acting along the line of sight. It also ignores the air dynamics, leading to error.

P.S., I'm simplifying by talking about line of sight. In reality these calculations are affected by the difference between line of departure (or bore line) and line of sight, especially at extreme angles or extreme distances.

P.P.S., I find it a little funny that the article dismisses velocity as having little effect on bullet flight. Tell that to everyone obsessing about muzzle velocity and talking about magnum cartridges as "flat shooting" because of all that powder.

Offline scoutdog346

  • Trade Count: (0)
  • Scout
  • ****
  • Join Date: Jul 2014
  • Posts: 319
  • Location: tacoma
Re: Shooting at deer downhill question
« Reply #27 on: June 01, 2017, 07:17:17 PM »
What caliber?  Scope?  You may want to consider a 200 yard zero.  What distances do you think you will be shooting?

Do a search on sighting in.  Lots of info out there.

A range finder that shows true ballistic range in very helpful.

Most important practice a lot!

Tikka t3x 30-06 with a leupold vx2 4-12 50mm. I am for sure going to get myself a range finder this season. From the area I'm scouting I could easily get a 150-200 yard shot. I can't see myself getting very close to the deer like within 100 yards. I will also be looking down hill into some clear cuts so maybe 150-200 yard downhill shots. I'm using 180 grain bullets. I can't seem to find a place to sight my gun in at 200 yards. All the legal target shooting areas are 100 yards or less. I'll have to see if any local ranges have 200 yards
with that gun...if u r dead on at 100 yard shot and the buck in under 250 yards don't shoot high or low just right on. don't make things any more confusing then need be as urban normal shaking will cancel things out.  think about the longest shot u think ur going to take and figure out what u got to do then and repeat it to ur self intermittently as ur hunting or write it down on so thing u can see as ur hunting and make sure u can see it with minimal movment. but yeah man...250 or under just put the cross hares right where u want to hit.


* Recent Topics

hanford by plugger
[Today at 04:08:01 PM]

my old Foxpro Scorpian broke by bearmanric
[Today at 04:03:59 PM]

Quest for 200" by idaho guy
[Today at 04:00:11 PM]

Trail cam to hunting strategy. Tell me what I can learn. by OutHouse
[Today at 03:50:34 PM]

2017 Colockum Archery Elk Hunt by OutHouse
[Today at 03:48:07 PM]

First time solo backcountry hunt. Any tips? by R2Rcoulee
[Today at 03:47:29 PM]

FS: Kuiu Icon 1850/5200 by TriggerMike
[Today at 03:35:30 PM]

Calling Whitetails Early Season by Machias
[Today at 03:31:57 PM]

Garmin rino by hiway_99
[Today at 03:27:44 PM]

moose 10 pts or less? by Falcon
[Today at 03:06:51 PM]

Moms First Deer. by hoyt2002
[Today at 03:02:04 PM]

Bethel Archery Bull (pics included and long story) by Tschaefer72
[Today at 03:02:02 PM]

Now booking caribou and moose drop camps for 2018 and 2019 by alaska drop camp
[Today at 03:01:34 PM]

Hunting rig help by Zuus
[Today at 03:00:39 PM]

Recipies for people that dont care for venison? by ctwiggs1
[Today at 02:59:13 PM]

Sell .270 win ammo by Shadrach71
[Today at 02:55:17 PM]

Turnbull Muzzy Cow by JLS
[Today at 02:30:09 PM]

big game butchers FYI by HoofsandWings
[Today at 02:27:15 PM]

big game butchers FYI by HoofsandWings
[Today at 02:17:59 PM]

New Guy here coming in from Alaska by optic2
[Today at 02:16:54 PM]