Do a search here and you will find a number of threads on the 9.3x57 and the Swede rifles.

No, stocking problems are not just related to recoil of different calibers. The Swede HVA's in 46, 146 and 640 series guns are frequently poorly-stocked, but easily fixed or cracks prevented if you get one in new condition.

Two main areas need to be inspected;

First, often the recoil lug does not bear well on the recoil shoulder in the stock. Sometimes not at all.

Then, the tang area is often bedded hard against the stock. These two together cause a major and almost immediate problem in firing.

In conjunction with the latter, the rear stock ferrule sometimes takes the recoil force and acts as a wedge, splitting the stock at the tang area.

What's the fix?

EASY.

Epoxy bed the recoil lug area and then relieve the tang area and drive out and throw away the rear stock ferrule. If already cracked, the tang area can be drilled with small holes from the inside and those filled with epoxy run in with a small hypodermic syringe sans needle. Get them from feed stores.

Occaisionally some have too little thickness in the stock from bottom to top and no amount of guard screw tightening fixes it. This can be fixed. Shim and bed tang and recoil areas. Easy fix, too.

No better pig rifle exists than a 9.3x57 in my opinion, though I have never used them on pigs. Just elk, deer, bear, domestic stock and varmints. Great caliber.