I was looking at the ballistic charts for the .22LR ammo that I usually shoot.
It is American Eagle copper plated hollowpoints. Part# AE22.
You can find the ballistic chart at
www.federalcartridge.com and following the links.
Anyways, one section of the ballistic chart says if you Zero your rifle at 50 yards, at 100 yards the bullet will be -6.3" below the line of sight. So far so good.
Then on the other side of the chart, it says if you zero your rifle for 100 yards, the bullet will be +2.7" at 50 yards.
What's going on here? On the second chart, shouldn't the POI be +6.3" @ 50 yards with a 100-yard zero?
Also, won't these values change with different barrel lengths? How can I put any faith in the numbers if they don't tell me what barrel length they used for their tests?
As you can probably tell, this is my first time really reading a ballistic chart and trying to figure out what it all means.
Thanks for any help.
-Nick Viejo.