Stock bedding is sometimes a problem with the old Mannlicher-Schoenauers. Once a friend had obtained a near mint M08 in 8x56M-Sch of pre-WW1 vintage. He complained to me the thing would not shoot accurately with any load he had concocted, wandering zero, flyers and such problems. I then asked him: "Did it ever come to your mind: Maybe that rifle is in such a pristine, rarely used condition after 80+ years because it was a bum shooter from the start and relegated to the rear corner of a gun cabinet, without being ever used for hunting?" Only some time later, after experiencing the same problems with another M-Sch, I found out about a possible reason.
About 1900 little was known about the proper bedding of bolt-action rifles among gunsmiths.
The M-Sch M03, 05, 08 and 1910 all share that tiny excuse for a recoil lug, inherited from the M88 commission action. On the military rifles, this abutted against either a contoured steel stock crossbolt or a steel plate inletted into the stock, but on most commercial Mannlichers this feature was omitted. This rarely causes problems with the low-recoiling 6.5x54 M03, but heavily loaded 9.5x57 M10s sometimes shoot themselves out of their stocks after some use. My remedy on my old junk pile escapee M1910: I filed an internal recoil plate, contoured to fit the receiver bottom, inletted and glass bedded behind the recoil lug to take the recoil. No problems so far.

Finally, on the 30-06 M1924 and the M1925 actions Steyr added a substantial square recoil lug to the receiver, about the same size as on the Mauser M98, but sometimes they did not bed this properly. FI, when I got my 30-06 M1924, a leftover Sequoia model, serial # 299, with original factory-mounted 4x Kahles scope, it showed some stock dings and bruises from careless storing, but otherwise apparently was rarely used.

Shooting it for the first time, it produced about 5" patterns, so something was wrong. After disassembly I noted the substantial recoil lug was hanging in the air, without contact to the stock. Recoil was taken by the lower end of the rear magazine wall, that acted like a strong spring, putting different tension on the barrel/stock relation from shot to shot. Obviously it had left the factory this way. Again, glass bedding the recoil lug and relieving the mag-stock contact solved the problem.