Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Hunting > Long Range Hunting & Shooting

Long Range Hunting & Shooting Nightforce Optics


Reply

Converting Moa To Inches ??

 
LinkBack Thread Tools Display Modes
  #1  
Old 10-16-2007, 12:04 AM
Gold Member
 
Join Date: May 2007
Location: VICTORIA AUSTRALIA
Posts: 912
Converting Moa To Inches ??

I have recently purchased the NF ballistic softwear and am familiarising myself with it. My current rifle will soon be replaced with a defensive edge 338 and NF NXS scope, but till then I want to use the pocket pc for referencing bullet drop in inches for my 300 weatherby mag. Can someone get clear in my mind the conversion calculation to convert the moa adjustment to inches ?? I know this question will be basic to some but I don't want to stuff this one up !!

Thanks all !!
__________________
With each step in the bush, you are a step closer.
Reply With Quote
  #2  
Old 10-16-2007, 01:13 AM
Platinum Member
 
Join Date: Jul 2007
Location: Arkansas (Home of Record)
Posts: 1,311
1 moa is 1.04719756" @ 100yds
or (1moa/60)3600{there are 360 degrees in a circle X 100yds}= 1.04719756
1/8moa @ 100yds=0.13" 1/4moa @ 100yds=0.26"
1/8" @ 100yds=0.119moa 1/4" @ 100yds=0.238moa
The difference between 1moa and a shooters moa(1inch) is only 0.47" @ 1000yds
Hope this helps....he-he-he
__________________
Courage is just fear that has said it's prayers.

The people trying to say the 2nd Amendment is outdated are probably the same folks that would say the same thing about the Bible.
Reply With Quote
  #3  
Old 10-16-2007, 01:34 AM
Gold Member
 
Join Date: May 2007
Location: VICTORIA AUSTRALIA
Posts: 912
Thanks for that ! I thought it would be simple, but thought I'd check !

Stay safe
__________________
With each step in the bush, you are a step closer.
Reply With Quote
  #4  
Old 10-16-2007, 09:44 AM
Platinum Member
 
Join Date: Jan 2003
Location: The rifle range, or archery range or behind the computer in Alaska
Posts: 3,592
That summed it up nicley. One other thing though is that 1 MOA at 100 yards and 1 MOA at 1000 yards in the inch department are different.

An easy calculation would be for a 1000 yard come up of 23 MOA would be:

23*(1000/100)*1.047 for 240.81 of bullet drop.

Also your night force in calibrated in .25 MOA per click adjustments. Dont use .25" at 1000 yards if you are going by inches. Use .25*1.047 for .26175" per click. Also use .26175*yardage/100 for your click value. Bullet drop in inches divided by that value.

Or you can simplify everything and just keep it to using MOA's and skip that much math.
__________________
__________________
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
Reply With Quote
  #5  
Old 10-16-2007, 04:50 PM
Gold Member
 
Join Date: Oct 2007
Posts: 908
I was making a chart for dial ups for a friend of mine and I started to ponder the same thing.....My Sierra program tells me the drop at 1000 yds with my standard 300 yard zero is *** inches. I was wondering if his Leoupold adjustements were in inches or true MOA. I called Leupold and asked them. They had no clue what I was even talking about:confused:!!! I asked for someone higher up on the food chain and got the same thing. MOA....INCH....SAME THING!!! For all practical purposes, at shorter and even medium ranges, thats true. But when we start talking 4 digit ranges it makes at least some difference, right....or am I just being anal!;)

THANKS,
TOD SOEBY
Reply With Quote
  #6  
Old 10-17-2007, 09:47 AM
Platinum Member
 
Join Date: Jan 2003
Location: The rifle range, or archery range or behind the computer in Alaska
Posts: 3,592
No youre not being anal, when you get into 100+ clicks, it adds up fast. I believe that the Lupy will have .25 MOA not inches but could be wrong.

The difference at 1K when 100 clicks are adjusted is over 5". Also most scopes arent perfectly .25 anyway. You should go out to 100 yards (exactly) and do a adjustment test to find out exactly what it is. Then you have an accurate number to go by.
__________________
__________________
Long range shooting is a process that ends with a result. Once you start to focus on the result (how bad your last shot was, how big the group is going to be, what your buck will score, what your match score is, what place you are in...) then you loose the capacity to focus on the process.
Reply With Quote
  #7  
Old 10-17-2007, 12:56 PM
Silver Member
 
Join Date: Mar 2006
Posts: 180
Quote:
Originally Posted by meichele View Post
. . . I believe that the Lupy will have .25 MOA not inches but could be wrong. . . .
Yes, they're in "MOA".

FWIW, the click values can vary minutely with scope model and exact point of the travel range. Some of the older Mark 4s, for example, get smaller as they add up. You should check each scope before assuming they're correct or doing any banking on their precision.
__________________
Ed

The beatings will continue until morale improves.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Converting Moa To Inches ??
Thread Thread Starter Forum Replies Last Post
MOA vs. inches question Beluebow Long Range Hunting & Shooting 16 08-10-2014 05:27 PM
How to: Trajectory in Inches to clicks?? HeftyLefty39 General Discussion 2 10-11-2010 05:51 PM
Lilja 338 barrel 2 inch x 42 inches $550 1doug Gun Parts - Stocks, Barrels, Actions, etc. 4 08-26-2007 10:24 PM
Bullet List (mm to inches)? TrpD345 Rifles, Bullets, Barrels & Ballistics 4 08-27-2005 12:13 PM
26 inches vrs longer barrels on a 338LM Dimitrios Rifles, Bullets, Barrels & Ballistics 4 12-08-2002 08:22 AM


All times are GMT -5. The time now is 10:34 PM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC