Well at least your $60 scopes are tracking well!! There’s another term for you to learn, tracking.” But that’s neither here or there right now. That’s perfectly normal. If you “zero” your scope that close... well here, have a look at this:
http://www.rifleshootermag.com/shoot...llistics_0303/
The first picture should tell the whole story.
Given the rise you’ve stated, I’m guessing your shooting a .243?