Y'all have some tough critters out west: 7x57 required for coyotes and jack-rabbits.
That's the minimum for jackrabbits.Don't have pics of it,but I used a .375 H&H and .416 Rigby for rabbits also.
FWIW, I can vouch for the effectiveness of the 416Rigby on our nasty tempered and aggressive Sabre Toothed Ground Squirrels. I have turned back many a fearsome charge from these horrible man eaters with a blow from a 400gr Monolithic HP bullet travelling at 2,650fps. I am quite certain that if I had been packing a mere plastic stocked push feed 30/06, I would not be alive right now to tell the tale. If you come out this way to hunt what some call mere varmints, use enough gun.