Biggest fixed power I have is an 8x56mm S&B that is on a .223Rem for shooting foxes at night. I have also taken a few Roe deer up in Scotland with this combo.

Having viewed through a couple of mid priced 10x42mm scopes, I personally would not want them for "hunting"..

I can appreciate they will work well for medium to long range shots in good light, but given where and how I hunt,those particular circumstances would not be very common and I would therefore prefer a variable or lower fixed power.