I am a complete newb to scopes. The only optic I've ever put on a rifle was my AimPoint Pro on my AR. I inherited a Rem 700 .243 with a K-Mart (seriously) scope and that rifle needs an upgrade. I'd like to hit steel at 500 yards or so. After searching around a bit, I suspect a Mildot reticle would be best. At least 18x I think. I think I'd prefer a second focal plane one. Budget <$500. Nikon Buckmasters? Nikon Buckmasters Rifle Scope 6-18x 40mm Side Focus Mil-Dot Reticle