Hi Vexesus (Burn he witches hey I'm a Python fan)
The MPR stands for Multi Purpose Rifle, you might have seen a BR which is the same 64 Barreled action with a wider stock.
"Targets" are normally built on the 54 action on adjustable aluminimum stocks, most people ask "what the **** is THAT" when they first see one.
Big bucks and you'd want to be real serious about target shooting to go the whole hog.
You end up at the olympics. if you're good enough