Anyone know where you can find bullet drop/windage cards for the .223? i saw some somewhere, but it was a while back and I don't remember where it was. It was a smaller laminated card, and I believe based on the 68 gr bullet for bullet drop and windage adjustments. Looking to learn a little more with shooting my AR, and one of these would be really helpful. Ok, so I know you can find ballistics info on most manufacturer websites, but I guess what I'm really wanting to know is "average" drop, or drift. Is there a formula for figuring out how much more drift you will get at 20 mph, vs 10 mph? and up? I've got the ballistics chart for one of the rounds I shoot, but I don't know what there is for detemining drift at different wind speeds, or even bullet rise due to heat.. is there an average change in height a bullet will typically raise if firing over hot ground? I thought I read somewhere that a bullet typically will fly 4 inches higher over hot ground, especially when mirage can be seen. The ammo I've been purchasing is American Eagle .223 REM, 55 gr. fmj boat-tail AE223. This is what I will be shooting most, as it's the most cost effective for me at the moment, and easy to get. I'd shoot wolf.. but everyone says to stay away from that with an AR. I can purchase 500 rounds of wolf for $89.