yes the caliber is a jump up some but sorry to tell you again, its NOT a very good deer hunting caliber, its a military caliber and most ammo out there is NOT for hunting
I am NOT sure why these are the only calibers your getting to pick from, but if your looking for a deer hunting rifle, you should be BUYING a deer hunting caliber here, and saving yourself a lot of headache in the process of making Decent ammo so hard to find
YES you can MAKE it work, but again, WHY when there are literally tons of GREAT deer rifle calibers in countless types and models of rifles?
ANY dealer should be able to GET you abouyt any rifle you wish,
I WAS gun dealer so I KNOW I could have without much effort at all!
and NOT sure where you are hunting, but a VERY low power scope like you have is NOT actually the best potion there either, a more SIMPLE 3x9, or likes scope offers you a LOT more precision as ranges get farther than UP close and personal, which that scope is made more for!
NOT a bad scope or rifle, just in wrong caliber and size IMO