The issue of the boltface is nothing to worry about, as any resonably good gunsmith can enlarge the boltface of a controlled feed action like the M98 Mauser. (pushfeed actions are more difficult to enlarge.) The base diameter of the 9.3x64 are only 0.504, compared to .470 of the .30-06, and smaller than the .375 H&H at 0.513. I have seen a lot of normal length M98's converted to shoot .375 and .300 magnums, and four 9.3x64's build on standard Mauser M98 actions. ( I know of a lot more). The ammo seem to be more of an issue, as we also cannot get regular supplies of RWS ammo in South Africa. (RWS ammo are not my first choice, as their bullets are too fragile, and they have discontinued their solids in 9.3) I use locally made brass from Stewart Custom-made Brass & Bullet shop, at about US$2.5 per case. RCBS makes dies, and Swift A-frame makes a exellent 300gr bullet. For smaller game , the Nosler Partition in the traditional 286gr will be an excelent choice.