Ridge Runner,
You saying its a fact doesn't make it factual. You're theory seems valid even though I'm not really sure you understand the physics behind what you are saying but there is no way to prove you're opinion to be factual. To do prove scientificly, which is what it would take to make that a FACT, you would to eliminate ALL other variables in the rifle except for that of the weight of barrel. There may be evidence to support a theory but that doesn't make it a FACT. A FACT is something along the lines of Force=Mass*Acceleration or Many people in here mistake accuracy for precision when refering to how well a rifle shoots. You're statement is purely opinion because it cannot be proven to be factual beyond a doubt.