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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Ft.lbs - How Much Is Enough?
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<blockquote data-quote="tim_w" data-source="post: 1460812" data-attributes="member: 11132"><p>In the end I am with Rich on this. You really have to know how is a given bullet going to expand and how far and straight its going to track once it hits the flesh. Its also game dependent. </p><p></p><p>Deer, Moose, Elk, Mullie or Browns, Blacks, Hog, Amer Buffalo, Cape Buf, Hippo, etc</p><p></p><p>Also now that we have Mono bullets that can be designed to open and very low vel etc it add variables yet again.</p><p></p><p>But lets just talk standard jacketed lead core</p><p></p><p>A 6.5 bullet full expands say at 2000 fos impact vel but a .375 bullet with just metaplate deformation to match its caliber diameter would give you the same basic frontal area for the per damage path and the weight would easily take care of penetration depth. The only thing where this changes is when vel is high enough it creates the secondary damage from the temp wound expansion actually creating permanent damage . But most all I see is impact vel below 2K so that can not be counted on.,</p><p></p><p>Sd can cover caliber and weight for the most part but still you need IMO caliber size for damage path. Vel for expansion limits and of course range. Energy is helpful but then once a bullet is creating an exit hole its not really offering much only that limit is reached for a given game animal.</p><p></p><p>Unless you give a healthy over compensation I do not think you can really rely on any single number to get you there. Too many variables.</p></blockquote><p></p>
[QUOTE="tim_w, post: 1460812, member: 11132"] In the end I am with Rich on this. You really have to know how is a given bullet going to expand and how far and straight its going to track once it hits the flesh. Its also game dependent. Deer, Moose, Elk, Mullie or Browns, Blacks, Hog, Amer Buffalo, Cape Buf, Hippo, etc Also now that we have Mono bullets that can be designed to open and very low vel etc it add variables yet again. But lets just talk standard jacketed lead core A 6.5 bullet full expands say at 2000 fos impact vel but a .375 bullet with just metaplate deformation to match its caliber diameter would give you the same basic frontal area for the per damage path and the weight would easily take care of penetration depth. The only thing where this changes is when vel is high enough it creates the secondary damage from the temp wound expansion actually creating permanent damage . But most all I see is impact vel below 2K so that can not be counted on., Sd can cover caliber and weight for the most part but still you need IMO caliber size for damage path. Vel for expansion limits and of course range. Energy is helpful but then once a bullet is creating an exit hole its not really offering much only that limit is reached for a given game animal. Unless you give a healthy over compensation I do not think you can really rely on any single number to get you there. Too many variables. [/QUOTE]
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Ft.lbs - How Much Is Enough?
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