This is a question I found this morning on Yahoo! answers. The following text was submitted by Bigchief and it reads as follows:
Well im a boxer.at our boxing club i was kind of surprised on who has the hardest punch.
During our bag drills we are asked to hit the bag during sets of 10, 20, 30, /// 30, 40, 50
Well we each get our turn to hold the bag when we are done, and during this time we hold the bag for the next guy. During this time i get a great understanding of the guys punching power.
Some of the boxers there who work out, and are kind of bulky , hit fairly hard, but not as hard as they look they would.
Some of the boxers who have muscle definition , but are not bulky hit just as hard.
What surprised me the most was that some of the boxers with little to no muscle definiton, hit the hardest.
This brings me to the belief that punchers are born, and muscle mass has little to no effect on power.
Id like to know if this is true, or if anyone else has had a different expierience , or if this is just a coincidence at my club.
In spite of the details about how bulky or defined each person is you are not specifying their weight: that can make a big difference in the power of their punches. Muscle mass and density will also have importance here, as some people are naturally stronger than others.
Punching power, given two punchers of equal weight, will depend in large measure from the overall body co-ordination when performing the action. A jab thrown using just arm and eventual shoulder power will have a certain level of power. On the other hand the same punch performed using the whole body, leaning toward the target even slightly and adding a half an inch step forward will result a lot stronger punch.
If you have access to a good coach he/she can teach you the concept in minutes: the point is then to practice it until it come natural, without thinking about the whole process.