Page 1 of 2 1 2 >
Topic Options
#7097450 - 11/21/12 06:29 PM Question about ballistics chart
wes7x57 Offline
Campfire Regular

Registered: 12/01/04
Posts: 1014
Loc: Jasper, AL
I copied this chart from JBM and had a question. Sorry, I couldn't make it any larger.
With a 100 yard zero. How many clicks would I click up to hit at 450 yards? Assuming 1 click is 1/4" at 100 yards.Please provide the math also.
Thanks



Edited by wes7x57 (11/21/12 06:33 PM)
Edit Reason: added info
_________________________
Take your kids hunting, instead of hunting your kids.

Top
RV 728 BP
CLICK HERE for GREAT PRICES on LEUPOLD OPTICS at CAMERA LAND!
#7097472 - 11/21/12 06:38 PM Re: Question about ballistics chart [Re: wes7x57]
mathman Online   content
Campfire Kahuna

Registered: 06/03/04
Posts: 21766
40.4 inches of drop at 450

1/4" click at 100 yards corresponds to 4.5 * .25 = 1.125" click at 450 yards

40.4" / (1.125" per click) = 35.91 --> use 36 clicks

If your clicks are really 1/4 MOA then you'd use 8.6 MOA drop divided by 1/4 MOA per click = 34.4 clicks --> 34 or 35 clicks

Top
#7097493 - 11/21/12 06:46 PM Re: Question about ballistics chart [Re: mathman]
wes7x57 Offline
Campfire Regular

Registered: 12/01/04
Posts: 1014
Loc: Jasper, AL
Thanks!!
It's a Zeiss Conquest 3-9x40 and is marked 1/4" at 100 yards.

600 yards would be 58.2 clicks??
_________________________
Take your kids hunting, instead of hunting your kids.

Top
#7097496 - 11/21/12 06:47 PM Re: Question about ballistics chart [Re: wes7x57]
mathman Online   content
Campfire Kahuna

Registered: 06/03/04
Posts: 21766
Looks right.

Top
#7097509 - 11/21/12 06:52 PM Re: Question about ballistics chart [Re: mathman]
wes7x57 Offline
Campfire Regular

Registered: 12/01/04
Posts: 1014
Loc: Jasper, AL
Thank you sir!!
_________________________
Take your kids hunting, instead of hunting your kids.

Top
#7097527 - 11/21/12 07:01 PM Re: Question about ballistics chart [Re: wes7x57]
mathman Online   content
Campfire Kahuna

Registered: 06/03/04
Posts: 21766
Just a note: Since that's not a parallax adjustable scope, make sure you're well centered in the sight picture when you zero at 100 and when you go long. Not just consistently positioned shot to shot, but consistently centered.

Top
#7097530 - 11/21/12 07:04 PM Re: Question about ballistics chart [Re: mathman]
wes7x57 Offline
Campfire Regular

Registered: 12/01/04
Posts: 1014
Loc: Jasper, AL
Good to know. I plan to zero at 200. Would that be better?
_________________________
Take your kids hunting, instead of hunting your kids.

Top
#7097532 - 11/21/12 07:06 PM Re: Question about ballistics chart [Re: wes7x57]
wes7x57 Offline
Campfire Regular

Registered: 12/01/04
Posts: 1014
Loc: Jasper, AL
BTW, I'm not looking to start shooting animals at long range anytime soon. Just trying to get the concept figured out.
_________________________
Take your kids hunting, instead of hunting your kids.

Top
#7097542 - 11/21/12 07:09 PM Re: Question about ballistics chart [Re: wes7x57]
mathman Online   content
Campfire Kahuna

Registered: 06/03/04
Posts: 21766
Originally Posted By: wes7x57
Good to know. I plan to zero at 200. Would that be better?


The same principle applies.

Top
#7097748 - 11/21/12 08:35 PM Re: Question about ballistics chart [Re: mathman]
greentimber Offline
Campfire Ranger

Registered: 08/04/08
Posts: 1812
Loc: TN
Best thing to do is eliminate inches and clicks from your vocabulary now. Your scope adjusts in IPHY or "inches per hundred yards"

Jbm will output data in IPHY. Re-run your numbers in IPHY. When you adjust your scope, count 1-2-3-One, 1-2-3-Two, 1-2-3-Three, etc. trying to count to 36 or 48, or 162 gets increasingly difficult and is inferior in any regard. Think and operate in relevant units which are IPHY for your scope.
_________________________
RLTW

Top
Page 1 of 2 1 2 >

Moderator:  RickBin, SYSOP 
RV 180
CLICK HERE to see GREAT PRICES on NEW SWAROVSKI ATX or STX MODULAR SPOTTERS at CAMERA LAND!
RV 160 1
CLICK HERE to see GREAT PRICES on NEW SWAROVSKI ATX or STX MODULAR SPOTTERS at CAMERA LAND!
Who's Online
432 registered (222Rem, 22250ai, 1100mag, 07blackwater, 16gauge, 12344mag, 55 invisible), 1077 Guests and 398 Spiders online.
Key: Admin, Global Mod, Mod
RV 160 2
CLICK HERE for GREAT PRICES on MEOPTA OPTICS at CAMERA LAND!
Forum Stats
52,648 Registered Members
72 Forums
673,441 Topics
9,713,187 Posts

Most users ever online: 4,830 @ 12/02/14 02:45 AM
RV 160 3
CLICK HERE for GREAT PRICES on LEUPOLD OPTICS at CAMERA LAND!










Copyright 2000-2015 24hourcampfire.com, Inc. All Rights Reserved.