Well, either of those rifles would have the muscle to fling a pellet such as this. I would advise caution with the Hatsan, as personal experience (and many reviews) have clued me in to the fact that Hatsan Barrel diameters tend to run to the small side of tolerances. Since Rabbit Magnums seem to have trouble with barrel jams anyway, I would be leery. I will note, however, that H&N Sniper Magnums are the preferred food for all three of my rifles (Gamo Silent Cat, Hatsan 155 Vortex .177, and Hatsan 135 Vortex ..22). A bit less weight, true, but more than enough knockdown power at the point of impact. They're basically a diabolo/slug hybrid.