.17 HMR & .17 MACH 2

I WON A SAVAGE .17 HMR. I DON'T KNOW A WHOLE LOT ABOUT THE .17 HMR AT THIS POINT. MY QUESTION IS WHAT IS THE DIF' BETWEEN THE .17 HMR AND THE .17 MACH 2? AND CAN I SHOOT THE .17 MACH 2 FROM THE MY SAVAGE.

THANKS FOR YOUR HELP ON THIS