Rifle Scopes just found out my scope was MOA

[canuck4570]

Please don't laugh guy's
went shooting with my nightforce I always tough
that .25 moa meant 1/4 inche
made myself a target with 5 different aiming point so I could check if the ballistic chart from JBM to 500 hundred yards was OK,
well nothing worked...
could you explain to me exactly what is a MOA in length and when they say on JBM to crank up let say
7.7 MOA you dial up the 7 mark on the elevation turret and the .7 there is only 4 graduation bar between each number so do you have to make a calculation each time and for the .7 dial 3 click or is there a way on the JBM site to come with 4 bar setting?
thank you Michel

 

[ChadTRG42]

Re: just found out my scope was MOA

For 7.7 MOA, you dial 7 and 3/4 (+3). So, it would actually be 7.75 MOA. So, if your dope said 3.3 MOA, I would dial 3.25 MOA (3 + 1/4).

First off- start here:

http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=378812#Post378812

 

[Grump]

Re: just found out my scope was MOA

The difference is about 5%.

MOAs move the impact MORE at 100 YARDS by that amount. More precisely, it's 1.0471975511966 inches per MOA, or 0.26179938779915 inch per 1/4-MOA click.

It generally doesn't become too important inside of 300 yards.

 

[canuck4570]

Re: just found out my scope was MOA

thank you both, have a lot of reading to do
have learn a lot today will be able to use my scope much more accurately next time at the range.....
again thank's