He was a pretty big guy, but remember, we are talking about the biggest bovines on Earth, in the pre-smokeless poweder days. If you wanted to try to tackle on of those beasts, you used the biggest gun you could find. Keep in mind that these were bp percussion muzzleloaders. No spare mag, no follow up shot, you only had the one in the barrel, and hope that the thing went off! Tough men, those early hunters