04 September 2009, 08:16
Dark Helmetconverting inches to MOA...
OK, I have to get a gun zeroed at 250 or 300 this weekend (I'll find which out when I get to the "range").
scope is a Leupold VX-II 3-9x40 w/ .25MOA clicks.
sooooo... pretty easy here (and google would likely provide the answer, but I like you guys better) what's .25MOA at 200, 250, and 300 in inches????
04 September 2009, 14:47
wingnutOne minute of angle is 1.047197580733" at 100 yards. For rifle sighting, call it one inch even; no human can hold steady enough, nor can any rifle or ammunition be manufactured to tolerances tight enough to prove the difference.
Use 1/2" for 200, 7/16" for 250, and 3/4" for 300, and you will be very, very close.
07 September 2009, 07:17
Bart B.For the shooting sports, one minute of angle was set at 1/3600th of the range over a hundred years ago. That's 1 inch at 100 yards. For trigonometry, it's 1.0472.... inch at 100 yards. But you're in ths shooting sports, so use 1 inch exactly Early sights ware (and good ones today still are) set up for this.
So, at 100 yards, 1/4th MOA equals 1/4th inch. Multiply that times 2.5 for what it is at 250 yards, by 3 for 300 yards which is 3/4ths of an inch.
07 September 2009, 07:38
butchlambertBart, check your numbers. Not 1.4072.
Butch
08 September 2009, 04:19
PeterButch, probably a typo. I think he meant 1.04.... I believe that wingnut answered the question best, with the possible exception that perhaps he meant 10/16 not 7/16 (which is less that 1/2 inch)! I need more coffee!
Peter.
08 September 2009, 21:19
Bart B.quote:
Originally posted by butchlambert:
Bart, check your numbers. Not 1.4072.
Butch
Well, seems I was weak in being right. It's 1.0472... my dislexic finger control muscles must have got the best of me. Thanks for the notice.