Need Direction on this rifle.
A young man at my church brought it by for me to look at. His Dad is in the home repair business and someone gave it to him.
Surface rust on most of it with some pitting. Bore is good. Stock is good with several inspector/proof stamps.

My Question is Where to look for detailed info ?
Also would it be safe to shoot 8mm mauser ammo ?

This young man is 15 yrs old and a Great kid. We shoot often.
His parents are a positive influence on him and he respects us "Old Farts".

He will be one who will make a lifetime hobby of firearms. He has the historical interest but also wants to be a shooter.

I am just not a Mauser Guy so any help would be appreciated.

Thanks
John Ed