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PostPosted: Thu Nov 02, 2017 4:14 pm 
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Joined: Fri Mar 10, 2017 7:34 am
Posts: 96
Location: Copperhill Tennessee 37317
AP: Decimal Scoring - QUIZ!

1. What is the decimal score for the X-ring?
2. What is the decimal score for a circle the size of a U.S. dime?
3. What is the decimal score for a circle the size of a Quarter?

Sorry, no prize money for winning the quiz. Smart-ass replies might get Honorable Mention.


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PostPosted: Thu Nov 02, 2017 4:50 pm 
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Joined: Fri Oct 28, 2016 10:01 am
Posts: 9
Location: Switzerland
1. 10.4
2. 9.5
3. 9.2

my guess ;)

_________________
Walther SSP-E
Steyr LP10
K31
K11


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PostPosted: Thu Nov 02, 2017 7:51 pm 
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Joined: Fri Mar 10, 2017 7:34 am
Posts: 96
Location: Copperhill Tennessee 37317
Thank you Phil.

Okay, we know the diameter of the X ring is: 5.5mm

Now, let's bust out the calipers here:
DIME = .704" // 17.88mm
QUARTER = .954' // 24.23mm

Compared to 10-Ring@11.5mm and 9-Ring@27.5mm.

I'd put the Dime at 9.6; Quarter at 9.2.

However: is anyone SURE the X-Ring is 10.4 ???


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PostPosted: Thu Nov 02, 2017 9:14 pm 
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Joined: Mon Mar 01, 2004 12:49 pm
Posts: 5242
Location: Ruislip, UK
atomicgale wrote:
However: is anyone SURE the X-Ring is 10.4 ???

It isn't. It's 10.4 and a bit.

Some 10.4s will register as an X, others won't.

X-ring is 5mm diameter
10.4 is 5.1mm diameter


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PostPosted: Thu Nov 02, 2017 10:58 pm 
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Joined: Fri Aug 03, 2007 5:17 pm
Posts: 69
Location: Colorado
Answers for Common US Coins

PDF file here with link to source Excel File and VBA Function Program
viewtopic.php?f=2&t=56346

and with any luck, an image here for you to see.

I did this so that I could answer the question for the young shooters I coach.


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