arcmin amin am arcminute vs Minute of Angle MOA as drop, windage, & or group accuracy, or giant bird

2 years ago
53

With your arm outstretched the angular diameter of ; a fist is 10 degrees & a little finger is 2 degrees & as viewed from Earth the angular diameter of; the Moon is .52 degrees & The sun is .50 degrees dividing a degree of angle by 60 is called a Minute of Angle or arcminute so The sun is 30 MOA & Moon is 31.2 MOA

a Minute of Angle or arcminute is a 1.047" circle 300 feet away or a current
US 1.043 " golden Sacajawea dollar coin at a football field distance but it's easier to remember a 1 inch circle at 100 yards as a MOA when used as a shooter's term BUT on your scope 4 clicks may equal 1 MOA any direction as drop & or windage
the SOP 14.9mm claimed 3,350 fps muzzle velocity & supersonic at 5400 yards & 5 MOA accuracy at 3000 yards or a 15 inch grouping at 1.7 miles or 2.7Km after 2.7 seconds sounds impressive but without a ballistics chart , i got nothing on its FPS or drop at any distance , that may be a 117 feet?

.264 Win. Magnum ballistics charts assume a zero at 100 yards & a
climb of 1.5" from muzzle & it only drops to barrel level at 170 yards

https://www.nasa.gov/sites/default/files/files/YOSS_Act_9.pdf
https://physics.weber.edu/palen/clearinghouse/labs/Skywatch/angles.html
https://en.wikipedia.org/wiki/Moa
https://www.targettamers.com/guides/moa-explained/
https://youtu.be/TZhoT0jFIzk
https://en.wikipedia.org/wiki/.264_Winchester_Magnum
http://gundata.org/cartridge/33/.264-winchester-magnum/
http://gundata.org/images/bullet/chart/.264-winchester-magnum-drop.png
https://keisan.casio.com/exec/system/1224835316

?? the SOP 14.9 Sounds like a real Mother !!!!!!!! Thanks Waptek. ?? Oh, Lol. Come on, what was the joke? Lol. That was fun. ?? The edit, oh, reran the video - haha, got the joke! Lol. Letting the reload experts / geeks, shoot it out over, SOP 14.9 and SOP 14.5 / different loads, barrel sizes, on and on. Lol. Good unsaid joke Mr. Waptek ?? . . . Also . . Your comment on half minute arc. . . . I guess but not sure how that exactly explains - I used to have a .264 Win. Magnum / a necked down 7 millimeter - using a 100 grain bullet, the muzzel velocity would approach 3,700 feet per second. My point is . . . At 100 yards the bullet would only drop / fall one inch . . . . How does this compare with your "HALF MINUTE ARC" ??? It's a question. Thanks man. ?????? Half minute arc at 3,000 yards?? Is that even possible???? = A bullets travel for thirty seconds?? , . How do you say yaa icks?

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