A "minute of angle" at 100 yards actually equals 1.047 inches, but 1 inch is close enough for the sake of discussion. For 1 MOA to equal 1 inch the range would be 95.49 yards.

Mosy of us shoot from 100yd and out. A friend , who sights his deer rifles at 50yd asked me how that translates into MAO and I don't know.

What would .5in, 1in, ect. at 50yd translate into at 100yd, 200yd ect.

SIMDOW

In theory, a 1" group @ 50yds should result in a 2" group @ 100yds and a 4" group @ 200yds.

Double the distance, double the dispersion of impacts. In theory anyway. Typically, groups actually get even larger as distance increases. There are a lot of variables that affect bullet flight as the range gets long.

group " x 4.0 @ 25yd = MOA

group " x 2.0 @ 50yd = MOA

group " x 1.3 @ 75yd = MOA

group " x 1.0 @ 100yd= MOA

group " x .67 @ 150yd= MOA

group " x .50 @ 200yd= MOA

group " x .40 @ 250yd= MOA

group " x .33 @ 300yd= MOA



Should be close enough, for Govt. work anyway.



Groups can get larger or smaller as the range increases, due to the stabilization of the bullet. It's not uncommon to see smaller groups (in MOA) at 200yd than at 100yd due to over-stabilization and (as mentioned) to see groups expand dramaticly at longer ranges due to boarderline under-stabilization. Which is one of the "why's" to the oft stated "test at the longest range your willing to shoot at".

A minute of angle is about a quarter inch at 25 yards, a half-inch at 50, 1 inch at 100, as the previous replies state. However, just because a rifle will deliver a .25" group @ 25 yards does not necessarily mean it will give a 2" group @ 200. surptrisingly, some rifles that shoot over a MOA @ 100 will shoot a half-MOA group @ 200. But for MOST rifles, it is the other way around, ie., an MOA group @ 100 will expand to over an MOA at 200, etc.

If using a scope sight parralax should be considered. Most big game scopes are adjusted to be paralax free at 150yds.
At closer range paralax will cause point of impact to vary. This adds to the idea that a bullet has to "go to sleep" or stabalise at some distance down range to be accurate.