Just fitted a Richter Optik 3-9x50e scope to my S410 and I'm well impressed!
It's crystal clear with a wide field of view and a brilliant illuminated 30/30 reticle , also it has an adjustable range finding front lense which is very usefull and it comes complete with fitted flip up covers!

If it had finger adjustable turrets it would be near on perfect

If someone would have told me i could get a scope of this quality for less that a ton 12 month ago i would have laughed at them.