This is quite an interesting dilemma because these are really and truly two different rifles, and, I would add, likely two different hunting applications, and possibly two different hunting philosophies...
The K95 Blaser is a single shot break-open rifle, called a "kipplauf" in Germany. They are typically very light, very elegant, and used by hunters who focus on the art of stalking, or who climb steep mountains after Chamois where every ounce counts. In Europe you will typically see them in upscale and/or alpine stalks, and in the hands of multiple rifles owners, because they are somewhat specialized. They also tend to be produced in smaller, flatter shooting calibers (6 mm x 62 Freres, 6.5 mm x 68, .257 Wby, etc.) well adapted to mountain hunts and games, and in the old days most were chambered for rimmed cartridges. I suspect they are the reason why Blaser created the rimmed .30 R Blaser.
I am well familiar with these. Mine is a full-length rib Zanardini 7x65R with railed West German Zeiss Diavari Z 2.5-10x52 T* scope (I date myself
) mounted with a Suhl claw mount. I agonized a long time over caliber selection because the 7x65R does not shoot quite flat enough for an "ideal" mountain rifle (the 6.5x68 R would have been much better), but it will flatten the largest Red Stag or the toughest Wild Boar (which the 6.5 may not). Ah! choices, choices...
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The R8 Blaser is a bolt action repeating rifle. It is typically heavier, more universal in its applications, and better adapted to hunting conditions where fast repeat shots are desired. In Europe you will typically see them in driven hunts, along side European calibers double rifles (e.g. 9.3x74R), and with hunters who do not necessarily own a large rifles collection.
In a forum focused on African hunting, I would think that a repeater is likely a better option, if you intend to hunt dangerous game one day. Conversely, if plains game is the only pursuit, the one-shot rifle, and the hunting philosophy it underpins, are certainly entirely fine. Enough Ruger #1 roam the fields of Africa to make the point
I must confess that it has been a long time since I took the Zanardini to the field. Going through the old shoebox, I find this picture from a Pennsylvania public land hunt dating back to the mid eighties, I think. Has it already been 35+ years!?!?! I guess that my puppy faces answers "yes"
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I am waiting on an invitation from
Red Leg to come stalk deer on his Texas estate, along side him and his Rigby Stalker or any of his wonderful falling-block single shot rifles, to take it out of the safe again