I just started playing and was wondering how i make my reticle a full circle instead of a small dot?

There should be a option for it. At least it was in GTA4. Don't remember where exactly in the options menu you find the switch thou.

It's def. not where it was in gta

I remember it being a circle with a dot in the center as default in GTA IV .. i didnt think you could even change the crosshair, didnt think there's other options

I don't think there's an option for that. The reticle's fine anyway once you get used to it. At first I couldn't really see it, but now it's fine. 

" all the video ive seen says other wise "

The only thing I can think is that you change the aim assist to beginner and maybe it changes it?

Apparently the circle reticle is only in multiplayer

That's weird. Why wouldn't they put the option in SP?