So here is my short review on it. I give it a 4 out of 5. For $140 on ebay it's a good deal. The bullet drop reticle does work well. I went 5-5 shooting at steel 200-600 yrds out. You just have to zero it at 100yrds then crank it to max zoom for the drop compensator to work. I say the glass is on par with my nikon buckmaster. The only thing that sucks on it are the turrets. They are spongey and lack a positive audible click. It does track well when shooting the box. I wonder if they will make a 308 one. I'll try to get some video of it in use next week.
for reference the nikon 4-14