The rifle appears to be an arisaka Type 38, normally issued in 6.5 Japannese, it appears to have been semi sporterized. they usually are good shooters but ammo is kinda pricy at least for Norma. good find .
just my thoughts the giveaway as to type is the tall reciever piece just behind the bolt handle . the mum on top actually a crysthanimum(spelling?)is sometimes ground off usually meaning the rifle was surrendered, whereas if intact it was captured, as stated the caliber should be 6.5X52mm japanese. There are slots on both sides of the receiver that the dust cover would have been. The bolt handle looks to be like an Arasaka but slightly bent downwards, where as they are normally straight like a Mosin Nagant rifle.