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| Defensive Ammunition & Ballistics Discussion of defensive and concealed carry ammunition, ballisitics and reloading. |
| View Poll Results: Wich would you consider the best SD ammo based on performance and reliability? | |||
| Federal HST |
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79 | 25.82% |
| Speer Gold Dot |
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105 | 34.31% |
| Winchester Ranger-T |
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58 | 18.95% |
| Cor-Bon DPX |
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64 | 20.92% |
| Voters: 306. You may not vote on this poll | |||
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#71 |
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Member
![]() Join Date: Nov 2007
Location: meowing on Cat Island
Posts: 137
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I use Barnes XPB copper bullets! They consistly expand without fragmenting! They come in various calibers and weights! Before DPX Corbon bullets -there were Barnes copper bullets! Here's their site and if you look at this site carefully you will find you can obtain a free DVD on ammo myths! Good look with your ammo search! http://www.barnesbullets.com/products/pistol/
Here's a picture of this ammo- Last edited by Cat-O-Matic; November 23rd, 2007 at 03:14 PM. |
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#72 |
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Assistant Administrator
![]() Join Date: Mar 2005
Location: South West PA
Posts: 25,366
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Cat - thx for that link - and the link BTW re the free DVD, which I have applied for is ............. Free DVD
__________________
Chris - P95 NRA Certified Instructor & NRA Life Member. "To own a gun and assume that you are armed is like owning a piano and assuming that you are a musician!." If a BG dies as the result of pointing a gun at me, then he has merely succumbed to an occupational hazard of being a thug |
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#73 |
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Member
![]() Join Date: Nov 2007
Location: meowing on Cat Island
Posts: 137
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I found this info on another site and thought it was both interesting and educating!
The topic of terminal ballistics is complex, and probably not legitimately dealt with in a short forum. I am, however, compelled to comment on the "bigger bullet=bigger hole=greater damage" concept. As a university/trauma ctr. and former military neurosurgeon over 20 years, I would say without any hesitation that the differential size between the permanent wound tract of a 45 and properly expanded 9 or 40 is of modest consequence in soft tissue. A careful review of permanent wound tract sizes for the calibers defines a differential of of at most 20% in permanent cavity, which while not insignificant in and of itself, pales in comparison to the critical factor of anatomic location and elasticity of tissue. A .7 inch strike to the liver vs a .58 inch permanent tract (for example) does not pose a significant difference in estimated tissue damage nor blood loss. In inelastic tissue the stress limit of tissues surrounding the permanent tract (also true of brain) will determine the overall depth and extent of non-vital or temporarily disrupted tissue. The sheer size of the hole in the brain from the permanent wound tract does not act as the primary determinant of outcome in my patients. What lobes of the brain are involved, did it cross vasculature on the way through etc, are ALL much more valid considerations. Once the weapon achieves 350-400ftlbs of energy, and has a penetration capability of >12-14inches, al of the rounds in the 9mm, 40, and 357SIG or 45ACP all have similar wounding potentials based on any data of value that has been accumulated. When I was in the Gulf, there were always stories of "the 9mm fails so a 45 is needed", but when you dig deeper, alays check for EXACT details on location of impact, organs crossed etc etc. A 45 hole in the bowel does NOT cause peritinitous and septic death any quicker than a 9mm hole in the bowel...they'll both achieve that end point untreated. Is a hole of .2in in the aorta any more deadly than a slightly smaller hole??The laws of flow velocity and pressure across a hole in vasculature would say not and that has been my experience over the years. Very small vascular holes may seal on their own, but a 9m, 40 45 etc wil all bleed in an unrelenting manner if unchecked by surgery. All things being equal, the larger permanent cavity of a 45 has SOME merit, but the trade-off in capacity, shot to shot follow through (for most shooters but not all) are all factors that need to be carefully considered. A very nice review by the Swedish noted"..to consider caliber as the most defining factor in incapacitation is to ignore a great amount data" After years of analyzing the data, for me, my CCW is invariably either 357SIG or 9m +P. That is not to say 45ACP is not a great round, only that the ballistic superiority of the round is generally based more on anecdote than scientific evaluation. Posts |
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