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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bullet Expansion - Hammer Hunter vs HHT
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<blockquote data-quote="RockyMtnMT" data-source="post: 2954841" data-attributes="member: 7999"><p>I still have not taken the time to read all of this. Did I see in one of the responses that the impact hole was 1.5" long and the bullet only penetrated 6"? If this is the case then that eliminates accidental meplat damage, from rough handling, as a potential cause of the poor expansion. An oblong entrance hole indicates a bullet that was in the process of tumbling prior to impact. Also a penetration of only 6" from a bullet that is fully intact indicates a sideways impact. So, that leaves us with two potential causes for the bullet that did not expand. 1. Ballistic stability so low that the bullet was cartwheeling through the air.</p><p>2. Bullet strike on something prior to impacting the target.</p><p>Looking at the bullet I lean towards hitting something before the animal. The jagged edge of half of the meplat indicates a hard surface without fluid. If it were a bone impact with a stable impact that failed to open, you would expect to see meplat that was closed. Also if the bullet began to tumble after impacting the animal it would likely be bent like a banana and penetrated more than 6".</p><p></p><p>There is not a bullet design, tip, or manufacturing process that will aid terminal performance of a bullet tumbling prior to impact. </p><p></p><p>There is no such thing as a bullet that doesn't deflect on brush impacts. If we could overcome brush impacts then wind deflection would be a thing if the past. Shooting through brush is simply playing the odds. As a golfer we always say trees are 70% air, so your odds of getting through the tree, without impact, are better than 50/50. That usually doesn't work out well. Sometimes it does though. Same goes for bullets and brush. Mostly air with a high probability of deflection. I too have played the odds shooting through brush. It has worked out more often than not, which has nothing to do with bullet construction.</p></blockquote><p></p>
[QUOTE="RockyMtnMT, post: 2954841, member: 7999"] I still have not taken the time to read all of this. Did I see in one of the responses that the impact hole was 1.5" long and the bullet only penetrated 6"? If this is the case then that eliminates accidental meplat damage, from rough handling, as a potential cause of the poor expansion. An oblong entrance hole indicates a bullet that was in the process of tumbling prior to impact. Also a penetration of only 6" from a bullet that is fully intact indicates a sideways impact. So, that leaves us with two potential causes for the bullet that did not expand. 1. Ballistic stability so low that the bullet was cartwheeling through the air. 2. Bullet strike on something prior to impacting the target. Looking at the bullet I lean towards hitting something before the animal. The jagged edge of half of the meplat indicates a hard surface without fluid. If it were a bone impact with a stable impact that failed to open, you would expect to see meplat that was closed. Also if the bullet began to tumble after impacting the animal it would likely be bent like a banana and penetrated more than 6". There is not a bullet design, tip, or manufacturing process that will aid terminal performance of a bullet tumbling prior to impact. There is no such thing as a bullet that doesn't deflect on brush impacts. If we could overcome brush impacts then wind deflection would be a thing if the past. Shooting through brush is simply playing the odds. As a golfer we always say trees are 70% air, so your odds of getting through the tree, without impact, are better than 50/50. That usually doesn't work out well. Sometimes it does though. Same goes for bullets and brush. Mostly air with a high probability of deflection. I too have played the odds shooting through brush. It has worked out more often than not, which has nothing to do with bullet construction. [/QUOTE]
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Bullet Expansion - Hammer Hunter vs HHT
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