I read an article that said that a Bullet Drop Reticle is not really necessary at less than 300 yds. My soon to be my rifle is a DPMS with a 20" heavy barrel so 300 yds shouldn't be an issue but mostly I'll be shooting 200 yds. I'm trying to decide on a scope and I've been thinking Leupold, Nikon, Bushnell or Burris. Have you seen all the reticles you can get? Jeez I feel like I'm researching a new car! Do you guys think a 3-9x X 40mm with a regular mil dot reticle would work well out to 200yds and maybe 300 yds.? Also I can conceivably spend about $600. What's the best for my money? Please help, my DPMS should be here soon (4 months and counting) and I'd like to have a scope ready to mount on it. Thanks in advance.