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Hunting
The Basics, Starting Out
10mm handgun
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<blockquote data-quote="Taj" data-source="post: 3080718" data-attributes="member: 98000"><p>Not necessarily true. I do wound ballistic workshops to LE for a major ammo maker and have shot a lot of gelatin in the last 12 years. SD on the .40/10mm bullets in standard weights is terrible. The bullet profile is almost square. I realize that gel is not the same as anatomy but it is a standard for comparison. It gets better as the weight goes up of course but bullet weights and configurations in any of the auto stuffer calibers are limited ( mag length and feeding issues) and velocity doesn't necessarily mean more penetration. In fact it can actually cause less penetration with the same bullet. Randy Garret did a paper on it, which you can find on the Garret Ammo web site. </p><p>Penetration is much more a factor of bullet weight, design and construction. Bullet diameter is always an advantage in a properly constructed bullet, however it is a hard factor to put a number to due to the fact that no two shooting are ever the same. Large meplat bullets have a tenancy to travel on a straighter line on contact with a target due to "bow stabilization". The meplat also adds to permanent wound channel diameter and tissue destruction. Any bullet (Auto loader bullets) that has any type of radius (ogive) from the tip to the major diameter, will do less damage in soft tissue due to tissue stretch and are more easily deflected. In fact, in the old days when I had to sit in on autopsies of GSW victims, it was impossible to tell what caliber they were shot with by looking at entrance wounds, especially if it was ball ammo. Even exit wounds with ball 9mm and .45 acp look the same due to approx the same frontal area of both rounds. Tissue gets stretched away from the area of tissue "crush" ( permanent wound channel) and little damage is done by the stretching. Velocity doesn't become a factor in permanent wound channel damage until you hit around 2000 fps. Just my 2cents worth.</p></blockquote><p></p>
[QUOTE="Taj, post: 3080718, member: 98000"] Not necessarily true. I do wound ballistic workshops to LE for a major ammo maker and have shot a lot of gelatin in the last 12 years. SD on the .40/10mm bullets in standard weights is terrible. The bullet profile is almost square. I realize that gel is not the same as anatomy but it is a standard for comparison. It gets better as the weight goes up of course but bullet weights and configurations in any of the auto stuffer calibers are limited ( mag length and feeding issues) and velocity doesn't necessarily mean more penetration. In fact it can actually cause less penetration with the same bullet. Randy Garret did a paper on it, which you can find on the Garret Ammo web site. Penetration is much more a factor of bullet weight, design and construction. Bullet diameter is always an advantage in a properly constructed bullet, however it is a hard factor to put a number to due to the fact that no two shooting are ever the same. Large meplat bullets have a tenancy to travel on a straighter line on contact with a target due to "bow stabilization". The meplat also adds to permanent wound channel diameter and tissue destruction. Any bullet (Auto loader bullets) that has any type of radius (ogive) from the tip to the major diameter, will do less damage in soft tissue due to tissue stretch and are more easily deflected. In fact, in the old days when I had to sit in on autopsies of GSW victims, it was impossible to tell what caliber they were shot with by looking at entrance wounds, especially if it was ball ammo. Even exit wounds with ball 9mm and .45 acp look the same due to approx the same frontal area of both rounds. Tissue gets stretched away from the area of tissue "crush" ( permanent wound channel) and little damage is done by the stretching. Velocity doesn't become a factor in permanent wound channel damage until you hit around 2000 fps. Just my 2cents worth. [/QUOTE]
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