Rod - my m98 in 9.3x62 put 286's out at 2,519 fps and 270's out at 2,675fps. There is little difference in felt recoil between those numbers and most .375H&H's. Factory ammo in that rifle, SAKO brand did not kick much at all, RWS286gr. at 2,340fps. That little extra 200fps does make a difference on the butt end.
; BTW - that SAKO ammo, loaded with the Speer 270gr. absolutely flattened an 8' grizzly at 25 yards range, frontal chest shot.
; My 9.3x57 makes 2,300fps with 270gr. Speers and 2,440fps with 232gr. Norma's using 48.0gr. and 52.0gr. H4895 respectively, in opened up 9x57 RP brass. I made some brass with '06 brass, but neck turned was a drag. The 8x57's form perfectly, no extra work other than fitting to the chamber.