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Long Range Hunting & Shooting
Larger diameter bullets allow more room for error?
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<blockquote data-quote="MagnumManiac" data-source="post: 1540799" data-attributes="member: 10755"><p>Yes, you are 100% correct regarding the momentum increase, but this does not factor in that bullets expand and slow down in relation to how much expansion takes place. Momentum doesn't kill just as much as energy doesn't.</p><p>Yes, a larger diameter bullet does damage more tissue, but it does not necessarily penetrate deeper due to momentum. A .338" 275gr Semi Spitzer out penetrates a .375" 300gr PP in my bullet boxes every single time, as does a .416" 410gr RN bullet.</p><p>I'll explain why here, but bullet LENGTH is KING when it comes to penetration.</p><p>In bullet expansion testing, their is a thing called the 'parachute effect'. As expansion gets larger, this parachute effect slows the bullet faster. Also, after testing DG bullets from 338, 375, 416, 425, 458, 505, 510 and 585, the larger the diameter of expanding bullets, the less the total penetration is. This is exactly what the parachute effect does, it slows the bullet faster the bigger it is. Now, this does not apply to solid bullets obviously.</p><p>Here is another example of energy meaning very little, most DG cartridges were based around 5,000lbs/ft at the muzzle. This is a great number to use, but there are cartridges like the 338WM that only have 4,000lbs/ft at the muzzle that OUT PENETRATE cartridges like the 375H&H, so lbs/ft doesn't trump every time.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 1540799, member: 10755"] Yes, you are 100% correct regarding the momentum increase, but this does not factor in that bullets expand and slow down in relation to how much expansion takes place. Momentum doesn’t kill just as much as energy doesn’t. Yes, a larger diameter bullet does damage more tissue, but it does not necessarily penetrate deeper due to momentum. A .338” 275gr Semi Spitzer out penetrates a .375” 300gr PP in my bullet boxes every single time, as does a .416” 410gr RN bullet. I’ll explain why here, but bullet LENGTH is KING when it comes to penetration. In bullet expansion testing, their is a thing called the ‘parachute effect’. As expansion gets larger, this parachute effect slows the bullet faster. Also, after testing DG bullets from 338, 375, 416, 425, 458, 505, 510 and 585, the larger the diameter of expanding bullets, the less the total penetration is. This is exactly what the parachute effect does, it slows the bullet faster the bigger it is. Now, this does not apply to solid bullets obviously. Here is another example of energy meaning very little, most DG cartridges were based around 5,000lbs/ft at the muzzle. This is a great number to use, but there are cartridges like the 338WM that only have 4,000lbs/ft at the muzzle that OUT PENETRATE cartridges like the 375H&H, so lbs/ft doesn’t trump every time. Cheers. [/QUOTE]
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Larger diameter bullets allow more room for error?
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