This is pretty cool tech - SIG SAUER Sierra6BDX 5-30x56mm Rifle Scope 34 mm Tube, Second Focal Plane

Gotta say I was a bit skeptical about this scope. I already had the BDX app and Kilo 3000 range finder and wanted to complete the package. So I got this mounted, zeroed, and verified out to 300 yards. It seems well built and a bit heavy. I put in my data for the load I was using into the app, which went straight to the range finder and into the scope. The illuminated dots are actually very visible in bright sunlight. The glass is pretty good actually. And the eye relief, depending on you, is awesome for me. I get about 4". I do have a few complaints. Not bad ones but need mentioning. 1, According to the manufactures data it only goes out to around 800 yards. 2, I already mentioned the weight. Not a big deal for me but if you want a light rig, this does add significant weight. 3, the range finder and app and scope all have to connect every time you screw with it. It sets everything you'll need very fast BUT it all needs to reconnect when it comes time to change anything. I'm hoping it will hold up to a PRS type situation. But that will be found out at a later date. So far that's all I've found out. Just take the time to learn it and it should be fine. But it is NOT a stand alone scope. It's meant for an app and/or the appropriate range finder.