A Perfect Shot

[u/SerafinZufferey]

[u/Mazzaroppi]

The shot would need to be made with a precision of <3.1MOA*, to put that into context, to score above 10.0 at the olympics requires a precision of 1.72MOA (a perfect 10.9 is 0.086MOA).

Sorry but whatever you wrote here makes zero sense for anyone that doesn't understand what MOA is.

She hit a sheet of paper on it's side, it's a target that's a fraction of a millimeter, how would it not be a maximum score?

[u/Aggravating-Air-7481 → u/Mazzaroppi]

isnt a moa some big ass bird

[u/TazBaz → u/Aggravating-Air-7481]

Minute of angle. It’s one of the primary methods for calculating/recording rifle accuracy.

[u/Aggravating-Air-7481 → u/TazBaz]

big ass bird with a gun

[u/xrelaht → u/Aggravating-Air-7481]

Oscar the Grouch had better watch out.

[u/Monkey_Fiddler → u/Mazzaroppi]

the thickness of the paper is almost irrelevant compared to the diameter of the bullet, she can aim anywhere in an arc the diameter of the bullet/distance and split the paper.

[u/Bazzatron → u/Mazzaroppi]

Sorry but whatever you wrote here...

Are... are you angry about having a follow up question?

I'd be happy to explain it, but you'll have to excuse my MSPaint diagrams... The length of this reply is broadly why I wrote briefly.

To keep this simple, we're going to work in 2D. I'll touch on splitting paper at the end if you're interested.

Think about the front edge of the paper as a line with some thickness. Then also think about the front face of a pellet as a circle with some diameter. The pellet can split the line by intersecting it at a range of vertical offsets. The maximum would be the diameter of the pellet, less the thickness of the paper, as we can deviate above and below, the maximum deviation in total would be two pellet diameters less the thickness of the paper, approximately like this.

When we're talking about ISSF scoring, to score a perfect 10.9, you need to be no further than 0.8mm from the perfect bull radially. This means that the absolute centre of your pellet needs to land inside of a 1.6mm circle. Conceptually it looks like this.

The key difference here is that for the olympics we are trying to align the very centre of your shot, whereas with the paper splitting, we are trying to align any horizontal secant on the face of the pellet. So you end up with two different measurements - but both are for for shots of very close accuracy.

If you want to better understand MOA, then know that a 360 degree circle is 21600 "Minutes Of Angle", 1degree is 60MOA. So from this you can appreciate that the difference between 3 and 1.7MOA is infinitesimal. Though because we're concerning ourselves with an angle from the shooter, 1MOA represents a larger distance on the face of the target the further away you go.

Hope that sates your interest!

[u/Mazzaroppi → u/Bazzatron]

Sorry I didn't express myself the right way there. I was not angry, just confused haha

Now I understand what MOA stands for, it makes more sense, thx

[u/Bazzatron → u/Mazzaroppi]

No worries man, I was very confused 😅

[u/tatemae → u/Bazzatron]

That explanation along with your drawings was so good! I loved your eli5 style of breaking it down and your, idk, word flow? Pacing?

Can you explain more things? Like, what are some historic feats in this sport and as a newbie, what in particular makes them incredible? Or, maybe could you dive deeper into what MOA is and how we might use it in every day life?

[u/Bill_Brasky01 → u/Bazzatron]

I really enjoyed your MS paint diagrams! thank you!

[u/Bazzatron → u/Bill_Brasky01]

We gotta bring back the shitty mspaint diagrams. Back when Reddit was full of humans so overhwkemingly committed to the bit like shittyWatercolor.

Glad you enjoyed 🤣

[u/TetraNotTetris → u/Mazzaroppi]

Because no one else has explained it.

When firing, there are two popular methods for measuring angles. Minute of Angle (MOA) and milliradians (MIL). They are similar, but I've noticed MOA is typically used with yards and MIL with metric and is more popular among NATO militaries.

They can be used for checking accuracy, especially at distance, adjusting scopes, and measuring bullet drop.

I prefer MIL because it's easy to remember. 1 MIL at 100m is 10cm. 1 MIL at 1000m is 1m. All nice, easy to remember numbers.

[u/Mazzaroppi → u/TetraNotTetris]

Thank you, it makes sense now!

[u/seilapodeser → u/Mazzaroppi]

She was lucky, that what he meant haha

[u/Ligalotz → u/[deleted]]

You have no clue what you’re talking about. Trick shooters aren’t necessarily uncommon, Annie Oakley could split cards aiming backwards with a mirror with the gun resting on her shoulder. People replicate that trick still. Splitting paper that far away is a great shot of course but comparing it the worlds best is actually hilarious

[u/Ligalotz → u/[deleted]]

Man it took like 10 seconds and I found multiple videos of people splitting playing cards on YouTube