ken snyder
Well-Known Member
- Joined
- Jul 26, 2010
- Messages
- 420
A Miliradian Is always 1000th the distance to the Target no matter how far or close we are away to the Target and independent of angle its mesaurement is expressed by the distance. mili 1000 raudus is length from the center to the edge. moa is an arc angle so its distance to a horizontal surface is only correct at 90 degrees because the length increases the further we get away from from 90 degrees kind of like pushing a basketball up against a wall and then measuring how far it is to the wall at different angles from the balls center.
When we tweek our scope numbers to make our charts. you will notice that our yardage corrections do not match the mathematical trajectory it has bellys and swamps in it (High low low High right left right left etc) things that a bullet in flight can not do consistently and repeatedly but are ever present and accounted for by tweeking the numbers and favor. So 1/8 th is really close to two inches at 1,550 we do not know which direction because it could be both vertical and Horizontal which gives us a 4 inch oval. the difference between a 4 inch circle and an 8 inch is only 2 inches of radius. 2 inches at 1550 yds is a measurement of angle of about .000035 per inch, scopes are not that accurate we correct them at different yardages
When we tweek our scope numbers to make our charts. you will notice that our yardage corrections do not match the mathematical trajectory it has bellys and swamps in it (High low low High right left right left etc) things that a bullet in flight can not do consistently and repeatedly but are ever present and accounted for by tweeking the numbers and favor. So 1/8 th is really close to two inches at 1,550 we do not know which direction because it could be both vertical and Horizontal which gives us a 4 inch oval. the difference between a 4 inch circle and an 8 inch is only 2 inches of radius. 2 inches at 1550 yds is a measurement of angle of about .000035 per inch, scopes are not that accurate we correct them at different yardages