What is the most important characteristic of a bullet? Weight, velocity, or expansion?
by 
kuyakev
ANSWERS: 12
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Velocity: Speed kills.
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all are equally important
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Depends on what you target is, so to speak. Each of these things has a different effect on what the bullet will do. Do you want accuracy? Range? Kill power? Pick what you want the bullet to achieve and then you can choose what is most important. Not an expert in designing bullets, just my thoughts
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the most important charateristic of a bullit is its ease of rifling down the barell while having the right burn of the powder
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It really does depend on the job you want the bullet to do. For example, the military uses depleted uranium, a very heavy bullet, that, when fired at a very high velocity, penetrates metal (armor). If your job is to penetrate armor you want both velocity and weight. On the other hand, if you are target shooting with a rifle, you want velocity. Weight may help in overcoming the effects of wind. Accuracy is your prime consideration here. If you are hunting animals, expansion is important for a quick, clean kill. So you really have to match the weapon and ammunition to the "target".
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all three of them don't mean anything without the gun
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only thing that matters to me is how far, how fast & how big is the hole it creates
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Depends on the desired effect.
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That it hits the target
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for accuracy and total force at impact, weight and velocity are most important. Upon entry of the target, expansion is an issue. Example is shooting the head, neck, or upper chest. If you do hit a fast kill point with your shot, then expansion is also an issue, as a fragmenting impact round will always have more stopping power than a standard slug.If you aim properly before firing though, the same shot would have the desired effect even with minimal expansion.
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It's BALANCE.
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Terminal energy is a product of the square of the velocity to the mass. A 3000 fps x 50gr projectile is better than a 1500 fps x 100gr if the projectile delivers all of it's energy into the target. Then it becomes a matter of expansion or fragmentation to create a wound cavity. High velocities generate a larger temporary cavity. At high velocities properly designed projectiles exhibit explosive expansion.
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