anyone have any experience with the 7x61 s&h caliber. I recently inherited an interarms mark X (Mauser based action) which was gone over by a gunsmith and has a custom stock. It really has more sentimental value than anything but I would like to shoot it. I got 4 boxes of Norma ammo with it. I would like to reload for it since the ammo seems very pricey. Anything you guys know about this caliber would be greatly appreciated