A sledgehammer, typically weighs about 10 pounds, which is, ironically 10 times as heavy as a 16 ounce framing hammer, and can be swung about as fast as the framing hammer. The most powerful shoulder fired sporting rifle is not ten times more powerful than a standard, non magnum. That's one place your anaogy falls apart. The second place your analogy falls apart is that in the field, under observation covering 30 years of experience, the lighter calibers ( the claw hammer in your analogy) has proven MORE SUCCESSFUL in doing the intended job than the heavy magnums, in the hands of guided hunters. So, using the hammer analogy of yours, the correct question would be "If, over 30 years of performing rtasks where a claw hammer was more successful than a sledge hammer was in performing the same task, why would someone insist that it was better to use the sledge hammer."
