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Author Topic: MOA, explained by an internet expert  (Read 5977 times)

Offline yorketransport

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MOA, explained by an internet expert
« on: February 16, 2019, 05:52:07 PM »
This was so amazing that I just felt like I had to share it with anyone who didn't see this over on LRH. Here's the back story: A poster asked about magnification for shooting at 1 mile. As usual, everyone chimed in saying that you need ridiculously high magnification to hit anything. I said that I do most of my shooting on 14-15x, including out to 1 mile and that a 30x scope isn't necessary. What followed was one of the most spectacularly nonsensical explanations of MOA as it relates to scope magnification that I've ever read. It's AWESOME!

Quote from: del2les, post: 1575335, member: 9299
Target perception at range:

A 1 moa target @ 100 yds sighted with a 1x scope equals a 1 moa target @ 1,000 yds sighted with a 10x scope. Similarly, an moa @ 1,760 with an 18x scope.

If you sight the same 1 moa @ 100 yds with a 4x scope, you need a 40x @ 1,000 to achieve the same scale on an moa target (10").

At 1,760, you would need....?:)

Quote from: del2les, post: 1575717, member: 9299
Uhhh... wrong. Angular measurements do not work that way. I explained the target perception above and the basic math to calculate the required increase in scope magnification to achieve equal perception in the scope and the reticle.

As the distance increases, the magnification to maintain the same optic perception on an moa sized target must increase in the same proportion. I.e. 1x, 5x, 10x, 17.6x and so on. Thus for simplification, I used a 1 moa target at 100 yds with a 1x mag setting. Simple math calc for any 1 moa target at the corresponding change in distance. 500, 1,000, 1,760, 2,000 etc.   In other words, a 1moa target at 1,000 yds (10") with a 10x scope is the same view as a 1 moa target at 100 yds with a 1x scope. Same for a 1 moa target at 1,760 with an 18x scope, and a1 moa at 2,000 is 20x.

So, unless one enjoys shooting at 1 moa dots at 100 yds with a 1x scope, that is the view you have at 1,760 yds with an 18x scope on a 1 moa target (18"). A smaller scope magnification at this range and target size would be similar to sighting at 100 yds at a 1 moa dot with a 3/4x scope or similar.

Since most of  us do not like sighting or zeroing at 1 moa dots at 100 yds with only 1x scopes, for most of us, we use higher magnifications at 100 yds and thus logic the same at 1 mile on an moa target.

This is a basic math calc for angular measurement at increasing distances.
A 14x scope view at 100 yds on a 1 moa dot to "appear the same relative size" on a 1 moa target at 1,760 yds requires: 14 x 17.6= 246

I feel dumber for even reading this! :chuckle:

Offline Oh Mah

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Re: MOA, explained by an internet expert
« Reply #1 on: February 16, 2019, 06:04:25 PM »
It's so stupid i lost it in translation.   :o

We had a guy that tried schooling one of my Q instructors like this,The instructor let him run the full scoop on how it all works  :chuckle: and then embarrassed him severely.It's like a swim team champ joining Coast Guard or a track star becoming a cop.It's all good swimming in a g-string but when your not and it's easy to chase someone down on an even surface with shorts and tennis shoes but when in pants,service belt and vest not so much lol.  :chuckle:
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(this is in reference to the biggie not me).

Offline Stein

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Re: MOA, explained by an internet expert
« Reply #2 on: February 16, 2019, 08:30:09 PM »
So, what’s the best 246 power scope?  I want one with molle attachments and somewhere to mount a GoPro.  How many clicks for 50 BMG?  Anyone know a range near my house?  What pre-workout powder do you take before shooting?

TIA


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Offline NWShooter

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Re: MOA, explained by an internet expert
« Reply #3 on: February 16, 2019, 08:40:35 PM »
MOA and the Kalashnikov are so simple a kid can use them.
A empty vessel makes the most noise.

"Every normal man must be tempted , at times, to spit on his hands, hoist the black flag, and begin slitting throats."

Offline jasnt

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Re: MOA, explained by an internet expert
« Reply #4 on: February 16, 2019, 08:44:39 PM »
:chuckle: I seen that today.  I just shake my head
https://www.howlforwildlife.org/take_action  It takes 10 seconds and it’s free. To easy to make an excuse not to make your voice heard!!!!!!

The commission shall attempt to maximize the public recreational game fishing and hunting opportunities of all citizens, including juvenile, disabled, and senior citizens.
https://apps.leg.wa.gov/RCW/default.aspx?cite=77.04.012

Offline NWShooter

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Re: MOA, explained by an internet expert
« Reply #5 on: February 16, 2019, 08:49:29 PM »
So, what’s the best 246 power scope?  I want one with molle attachments and somewhere to mount a GoPro.  How many clicks for 50 BMG?  Anyone know a range near my house?  What pre-workout powder do you take before shooting?

TIA


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All you need is some HuntWa Juice and your good to go! It's always a good time. Always some good entertainment.
A empty vessel makes the most noise.

"Every normal man must be tempted , at times, to spit on his hands, hoist the black flag, and begin slitting throats."

Offline Mtnwalker

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Re: MOA, explained by an internet expert
« Reply #6 on: February 16, 2019, 08:55:59 PM »
Link to the thread? I could use some entertainment

Offline yorketransport

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Re: MOA, explained by an internet expert
« Reply #7 on: February 16, 2019, 09:41:24 PM »
Link to the thread? I could use some entertainment

https://www.longrangehunting.com/threads/scope-power-for-1-760y.215444/

The poor OP tried to get his thread back on track a few times, but it just keeps going off into the weeds.  :chuckle:

I go by Yorke-1 over on LRH, so those are my posts.

Offline KFhunter

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Re: MOA, explained by an internet expert
« Reply #8 on: February 16, 2019, 09:45:18 PM »
OMG make it stop!   I can't read no more!


Offline Mongo Hunter

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Re: MOA, explained by an internet expert
« Reply #9 on: February 18, 2019, 10:31:49 AM »
Sad part is most cant shoot that far anyway. They spend 3k on a rifle, 2k on a scope and cant even get 1moa @ 100.
Vegetarian: Old Indian word for Bad Hunter.

Offline KFhunter

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Re: MOA, explained by an internet expert
« Reply #10 on: February 18, 2019, 10:35:37 AM »
LR rifles are passe'

now we call them ELR rifles  :chuckle:

Offline Stein

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Re: MOA, explained by an internet expert
« Reply #11 on: February 18, 2019, 10:59:21 AM »
Sad part is most cant shoot that far anyway. They spend 3k on a rifle, 2k on a scope and cant even get 1moa @ 100.

For a bunch of people it is more about the social media posting than actually doing something.

Offline KFhunter

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Re: MOA, explained by an internet expert
« Reply #12 on: February 18, 2019, 11:06:27 AM »
Sad part is most cant shoot that far anyway. They spend 3k on a rifle, 2k on a scope and cant even get 1moa @ 100.

whoa whoa wait a minute,  they can't get 1 moa at 3x or at 9x power?    If they zoomed in at 9x that moa gets smaller and harder to achieve!



 :chuckle:

Offline Wetwoodshunter

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Re: MOA, explained by an internet expert
« Reply #13 on: February 18, 2019, 11:34:00 AM »
 This is gold.

I can go shoot a group at 24x and zoom out to 4x and it instantly shrinks my group if I just tell everyone I shot at 4x!


Online The scout

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Re: MOA, explained by an internet expert
« Reply #14 on: February 18, 2019, 11:43:46 AM »
Link to the thread? I could use some entertainment

https://www.longrangehunting.com/threads/scope-power-for-1-760y.215444/

The poor OP tried to get his thread back on track a few times, but it just keeps going off into the weeds.  :chuckle:

I go by Yorke-1 over on LRH, so those are my posts.

That’s some good stuff. I laughed out loud multiple times reading all the posts.

 


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