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<blockquote data-quote="Pdvdh" data-source="post: 1186113" data-attributes="member: 4191"><p>Not a wimp, but I doubt it would be overpowering and deflate large brown bear with a single shot. I have no feedback on less common cartridges. Not enough of them in use.</p><p>Here's some energy / KO values for that cartridge:</p><p>300gr @ ~1,800fps _ Muzzle Energy <strong>2,157</strong>ft-lbs, Taylor KO Value = <strong>35</strong></p><p></p><p>Here's the specs on the 2 3/4" 12 gauge Brenneke Maximum Barrier Penetrator Magnum slug, for comparison: Caliber = .730</p><p>600gr @ ~1,600fps _ Muzzle Energy <strong>3,400</strong>ft-lbs, Taylor KO Value = <strong>100</strong></p><p></p><p>The guys I know using .458 Win Mags load 400 - 500gr bullets:</p><p>400gr @ ~2,400fps _ Muzzle Energy <strong>5,115</strong>ft-lbs, Taylor KO Value = <strong>62</strong></p><p>450gr @ ~2,200fps _ Muzzle Energy <strong>4,835</strong>ft-lbs, Taylor KO Value = <strong>64</strong></p><p>500gr @ ~2,150fps _ Muzzle Energy <strong>5,131</strong>ft-lbs, Taylor KO Value = <strong>70</strong></p><p></p><p>Here's the energy values of a .338 Lapua Improved, for comparison:</p><p>300gr @ ~3,000fps _ Muzzle Energy <strong>5,994</strong>ft-lbs, Taylor KO Value = <strong>43</strong></p><p></p><p>The Taylor KO value is considered to be more valid for the larger caliber, lower MV cartridges. Those are the types of cartridges/bullets Taylor used in Africa back in his days. It doesn't assign as much value to velocity as it does bullet weight and caliber.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 1186113, member: 4191"] Not a wimp, but I doubt it would be overpowering and deflate large brown bear with a single shot. I have no feedback on less common cartridges. Not enough of them in use. Here's some energy / KO values for that cartridge: 300gr @ ~1,800fps _ Muzzle Energy [B]2,157[/B]ft-lbs, Taylor KO Value = [B]35[/B] Here's the specs on the 2 3/4" 12 gauge Brenneke Maximum Barrier Penetrator Magnum slug, for comparison: Caliber = .730 600gr @ ~1,600fps _ Muzzle Energy [B]3,400[/B]ft-lbs, Taylor KO Value = [B]100[/B] The guys I know using .458 Win Mags load 400 - 500gr bullets: 400gr @ ~2,400fps _ Muzzle Energy [B]5,115[/B]ft-lbs, Taylor KO Value = [B]62[/B] 450gr @ ~2,200fps _ Muzzle Energy [B]4,835[/B]ft-lbs, Taylor KO Value = [B]64[/B] 500gr @ ~2,150fps _ Muzzle Energy [B]5,131[/B]ft-lbs, Taylor KO Value = [B]70[/B] Here's the energy values of a .338 Lapua Improved, for comparison: 300gr @ ~3,000fps _ Muzzle Energy [B]5,994[/B]ft-lbs, Taylor KO Value = [B]43[/B] The Taylor KO value is considered to be more valid for the larger caliber, lower MV cartridges. Those are the types of cartridges/bullets Taylor used in Africa back in his days. It doesn't assign as much value to velocity as it does bullet weight and caliber. [/QUOTE]
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