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<blockquote data-quote="Rflshootr" data-source="post: 2698074" data-attributes="member: 10284"><p>Welcome from MD. Now let's talk about why you want to re-barrel from 270WSM to 300WSM.</p><p></p><p>Here is something to think about.</p><p>.277 140 grain Berger Classic Hunter</p><div style="text-align: center"> <table style='width: 100%'><tr><th>Input Parameters</th><th></th><th></th><th></th></tr><tr><td><strong>Bullet Diameter</strong></td><td>0.277 inches</td><td><strong>Zero Range</strong></td><td>100 yards</td></tr><tr><td><strong>Bullet Weight</strong></td><td>140 grains</td><td><strong>Sight Height</strong></td><td>1.50 in</td></tr><tr><td><strong>Ballistic Coefficient</strong></td><td>0.271</td><td><strong>Muzzle Velocity</strong></td><td>3000 fps</td></tr><tr><td><strong>Temperature</strong></td><td>40 F</td><td><strong>Wind Speed</strong></td><td>0.00 mph</td></tr><tr><td><strong>Altitude</strong></td><td>1000 feet</td><td><strong>Wind Direction</strong></td><td>9 o'clock</td></tr><tr><td><strong>Inclination</strong></td><td>0 degrees</td><td><strong><em>Berger Bullets</em></strong></td><td><strong><em>Copyright 2013</em></strong></td></tr></table></div> <div style="text-align: center"></div> <div style="text-align: center"></div> <div style="text-align: center"></div> <div style="text-align: center"> <table style='width: 100%'><tr><th>Range Card</th><th></th><th></th><th></th><th></th><th></th></tr><tr><td><strong>Range<br /> (y)</strong></td><td><strong>Velocity<br /> (fps)</strong></td><td><strong>Energy<br /> (ft-lbs)</strong></td><td><strong>Elevation<br /> (inches)</strong></td><td><strong>Windage<br /> (inches)</strong></td><td><strong>TOF<br /> (s)</strong></td></tr><tr><td><div style="text-align: center">100</div> </td><td><div style="text-align: center">2825</div> </td><td><div style="text-align: center">2482</div> </td><td><div style="text-align: center">0.00</div> </td><td><div style="text-align: center">0.00</div> </td><td><div style="text-align: center">0.10</div> </td></tr><tr><td><div style="text-align: center">150</div> </td><td><div style="text-align: center">2740</div> </td><td><div style="text-align: center">2333</div> </td><td><div style="text-align: center">-0.85</div> </td><td><div style="text-align: center">0.00</div> </td><td><div style="text-align: center">0.16</div> </td></tr><tr><td><div style="text-align: center">200</div> </td><td><div style="text-align: center">2655</div> </td><td><div style="text-align: center">2192</div> </td><td><div style="text-align: center">-2.86</div> </td><td><div style="text-align: center">0.00</div> </td><td><div style="text-align: center">0.21</div> </td></tr><tr><td><div style="text-align: center">250</div> </td><td><div style="text-align: center">2572</div> </td><td><div style="text-align: center">2057</div> </td><td><div style="text-align: center">-6.10</div> </td><td><div style="text-align: center">0.00</div> </td><td><div style="text-align: center">0.27</div> </td></tr><tr><td><div style="text-align: center">300</div> </td><td><div style="text-align: center">2491</div> </td><td><div style="text-align: center">1929</div> </td><td><div style="text-align: center">-10.66</div> </td><td><div style="text-align: center">0.00</div> </td><td><div style="text-align: center">0.33</div> </td></tr><tr><td><div style="text-align: center">350</div> </td><td><div style="text-align: center">2411</div> </td><td><div style="text-align: center">1807</div> </td><td><div style="text-align: center">-16.61</div> </td><td><div style="text-align: center">0.00</div> </td><td><div style="text-align: center">0.39</div> </td></tr><tr><td><div style="text-align: center">400</div> </td><td><div style="text-align: center">2332</div> </td><td><div style="text-align: center">1691</div> </td><td><div style="text-align: center">-24.07</div> </td><td><div style="text-align: center">0.00</div> </td><td><div style="text-align: center">0.45</div> </td></tr><tr><td><div style="text-align: center">450</div> </td><td><div style="text-align: center">2255</div> </td><td><div style="text-align: center">1581</div> </td><td><div style="text-align: center">-33.12</div> </td><td><div style="text-align: center">0.00</div> </td><td><div style="text-align: center">0.52</div> </td></tr><tr><td><div style="text-align: center">500</div> </td><td><div style="text-align: center">2180</div> </td><td><div style="text-align: center">1477</div> </td><td><div style="text-align: center">-43.88</div> </td><td><div style="text-align: center">0.00</div> </td><td><div style="text-align: center">0.59</div> </td></tr></table> </div><p>That's no slouch. And you might even be able to get it up near 3100 FPS.</p><p>That should easily take you to 1/4 mile.</p></blockquote><p></p>
[QUOTE="Rflshootr, post: 2698074, member: 10284"] Welcome from MD. Now let's talk about why you want to re-barrel from 270WSM to 300WSM. Here is something to think about. .277 140 grain Berger Classic Hunter [CENTER][TABLE] [TR] [TH]Input Parameters[/TH] [TH][/TH] [TH][/TH] [TH][/TH] [/TR] [TR] [TD][B]Bullet Diameter[/B][/TD] [TD]0.277 inches[/TD] [TD][B]Zero Range[/B][/TD] [TD]100 yards[/TD] [/TR] [TR] [TD][B]Bullet Weight[/B][/TD] [TD]140 grains[/TD] [TD][B]Sight Height[/B][/TD] [TD]1.50 in[/TD] [/TR] [TR] [TD][B]Ballistic Coefficient[/B][/TD] [TD]0.271[/TD] [TD][B]Muzzle Velocity[/B][/TD] [TD]3000 fps[/TD] [/TR] [TR] [TD][B]Temperature[/B][/TD] [TD]40 F[/TD] [TD][B]Wind Speed[/B][/TD] [TD]0.00 mph[/TD] [/TR] [TR] [TD][B]Altitude[/B][/TD] [TD]1000 feet[/TD] [TD][B]Wind Direction[/B][/TD] [TD]9 o'clock[/TD] [/TR] [TR] [TD][B]Inclination[/B][/TD] [TD]0 degrees[/TD] [TD][B][I]Berger Bullets[/I][/B][/TD] [TD][B][I]Copyright 2013[/I][/B][/TD] [/TR] [/TABLE] [TABLE] [TR] [TH]Range Card[/TH] [TH][/TH] [TH][/TH] [TH][/TH] [TH][/TH] [TH][/TH] [/TR] [TR] [TD][B]Range (y)[/B][/TD] [TD][B]Velocity (fps)[/B][/TD] [TD][B]Energy (ft-lbs)[/B][/TD] [TD][B]Elevation (inches)[/B][/TD] [TD][B]Windage (inches)[/B][/TD] [TD][B]TOF (s)[/B][/TD] [/TR] [TR] [TD][CENTER]100[/CENTER][/TD] [TD][CENTER]2825[/CENTER][/TD] [TD][CENTER]2482[/CENTER][/TD] [TD][CENTER]0.00[/CENTER][/TD] [TD][CENTER]0.00[/CENTER][/TD] [TD][CENTER]0.10[/CENTER][/TD] [/TR] [TR] [TD][CENTER]150[/CENTER][/TD] [TD][CENTER]2740[/CENTER][/TD] [TD][CENTER]2333[/CENTER][/TD] [TD][CENTER]-0.85[/CENTER][/TD] [TD][CENTER]0.00[/CENTER][/TD] [TD][CENTER]0.16[/CENTER][/TD] [/TR] [TR] [TD][CENTER]200[/CENTER][/TD] [TD][CENTER]2655[/CENTER][/TD] [TD][CENTER]2192[/CENTER][/TD] [TD][CENTER]-2.86[/CENTER][/TD] [TD][CENTER]0.00[/CENTER][/TD] [TD][CENTER]0.21[/CENTER][/TD] [/TR] [TR] [TD][CENTER]250[/CENTER][/TD] [TD][CENTER]2572[/CENTER][/TD] [TD][CENTER]2057[/CENTER][/TD] [TD][CENTER]-6.10[/CENTER][/TD] [TD][CENTER]0.00[/CENTER][/TD] [TD][CENTER]0.27[/CENTER][/TD] [/TR] [TR] [TD][CENTER]300[/CENTER][/TD] [TD][CENTER]2491[/CENTER][/TD] [TD][CENTER]1929[/CENTER][/TD] [TD][CENTER]-10.66[/CENTER][/TD] [TD][CENTER]0.00[/CENTER][/TD] [TD][CENTER]0.33[/CENTER][/TD] [/TR] [TR] [TD][CENTER]350[/CENTER][/TD] [TD][CENTER]2411[/CENTER][/TD] [TD][CENTER]1807[/CENTER][/TD] [TD][CENTER]-16.61[/CENTER][/TD] [TD][CENTER]0.00[/CENTER][/TD] [TD][CENTER]0.39[/CENTER][/TD] [/TR] [TR] [TD][CENTER]400[/CENTER][/TD] [TD][CENTER]2332[/CENTER][/TD] [TD][CENTER]1691[/CENTER][/TD] [TD][CENTER]-24.07[/CENTER][/TD] [TD][CENTER]0.00[/CENTER][/TD] [TD][CENTER]0.45[/CENTER][/TD] [/TR] [TR] [TD][CENTER]450[/CENTER][/TD] [TD][CENTER]2255[/CENTER][/TD] [TD][CENTER]1581[/CENTER][/TD] [TD][CENTER]-33.12[/CENTER][/TD] [TD][CENTER]0.00[/CENTER][/TD] [TD][CENTER]0.52[/CENTER][/TD] [/TR] [TR] [TD][CENTER]500[/CENTER][/TD] [TD][CENTER]2180[/CENTER][/TD] [TD][CENTER]1477[/CENTER][/TD] [TD][CENTER]-43.88[/CENTER][/TD] [TD][CENTER]0.00[/CENTER][/TD] [TD][CENTER]0.59[/CENTER][/TD] [/TR] [/TABLE][/CENTER] That's no slouch. And you might even be able to get it up near 3100 FPS. That should easily take you to 1/4 mile. [/QUOTE]
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