New guy with question on Axis ammo and scope

[BlackHeart_HMFIC]

I seen someone give this recommendation for a 223 in another thread: http://www.cameralandny.com/optics/v...ssfireii2-7x32

They offer "dead-Hold BDC Reticles" and "Rimfire V-Plex Reticles", terms that are foreign to me. (See, I told you I was a noob) Would one of them be a good choice?

Edit: A video on that very page shows the difference between dead-hold and v-plex. Guess I just need to do some you-tubing.