She's a beauty Fred!
Does this rifle have Swedish import marks? Have seen several coming out of there to the US recently, with similar features. Especialy the butt extension. The Swedes are big guys.
I beleive the bolt handle was done to help accomodate the scope, AND to make the rifle easier to handle in thick cover with gloves or mittens!
The 8x57 is an overlooked and underrated cartridge here in the US. I love it.