As Mark stated, basically you'll get 2800 fps with 250 gr bullets with the 358 Norma, 2950 or so out of the STA, and 3000-3100 out of the Imperial/RUM/404 Jeff triplets.  The STA shoves you back a fair bit better then the Norma, I don't find either too objectionable.  The others are starting to get right on my recoil tolerance level.  Build them in a slightly heavier rifle (10 pounds all up is nice), use a limbsaver pad, scope them with something with lots of eye relief, and away you go.  FWIW - dan