Hubert, it's a great rifle for deer hunting, I would recommend using Buffalo Bore, Garrett Ammo, or Underwood ammo for shots over 50-60 yards.
Bud's carries Buffalo Bore ammo in .44 Magnum at a good price. Just go for the heavy bullet weights, over 240 grains, for the longer range.

Yes it will do a super job on whitetails at 100 yards Big Mule deer I would want a little more gun

Yes, the 44 ,mag makes a good 100 yard deer gun. But works even better as a 50-75 yard tree stand gun. I have a Ruger M-77/44 bolt gun that has proven to be a solid, accurate, easy to carry package. A Leupold 1x4 power scope works great for the .44 mag.

Yes it will do a super job on whitetails at 100 yards Big Mule deer I would want a little more gun

Hi Hubert, No it would be an Excellent firearm for that purpose! Use Underwood Ammunition

Absolutely Hubert. This will be an almost perfect combination of light recoil and deer killing power package. Definitely look into "Underwood Ammunition" for their 44 Mag loads.