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Rifles, Reloading, Optics, Equipment
7mm STW
169gr Hammer Hunter in 7 STW
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<blockquote data-quote="budlight" data-source="post: 2268098" data-attributes="member: 2939"><p>I have wildcat rifles like my 7stw which was made before it became a commercial caliber. So I can stick in a off the shelf and it fire forms to my straighter case which actually holds a few grains more powder. I also have a 28 inch barrel.</p><p></p><p>So you can look at loads of another powder next to yours on a burn rate chart to figure out yours from a same volume case and caliber. So being able to extrapolate out from existing data is how you do unknowns.</p><p></p><p>So below is a 175 grain and 85.7 gr of r33. You could start by loading say 79.0, 80.0 , 80.5......... and look at the pressure signs with your 190's. Then you pull the bullets that have too much powder. Then you do chrono and accuracy bench rest days.</p><p></p><p>My rifle is too different to give specifics and a 190 from one manufacture might run 2 grains differently from bullet "B"</p><p></p><p> </p><table style='width: 100%'><tr><td>7mm Shooting Times Westerner</td><td>Speer 175 gr SP</td><td>Remington</td><td>3.6</td><td>24</td><td>Fed 215</td><td><a href="http://www.alliantpowder.com/products/powder/reloder33.aspx" target="_blank">Reloder 33</a></td><td>85.7</td><td>3,033</td><td><div style="text-align: center">-</div> </td></tr></table></blockquote><p></p>
[QUOTE="budlight, post: 2268098, member: 2939"] I have wildcat rifles like my 7stw which was made before it became a commercial caliber. So I can stick in a off the shelf and it fire forms to my straighter case which actually holds a few grains more powder. I also have a 28 inch barrel. So you can look at loads of another powder next to yours on a burn rate chart to figure out yours from a same volume case and caliber. So being able to extrapolate out from existing data is how you do unknowns. So below is a 175 grain and 85.7 gr of r33. You could start by loading say 79.0, 80.0 , 80.5......... and look at the pressure signs with your 190's. Then you pull the bullets that have too much powder. Then you do chrono and accuracy bench rest days. My rifle is too different to give specifics and a 190 from one manufacture might run 2 grains differently from bullet "B" [TABLE] [TR] [TD]7mm Shooting Times Westerner[/TD] [TD]Speer 175 gr SP[/TD] [TD]Remington[/TD] [TD]3.6[/TD] [TD]24[/TD] [TD]Fed 215[/TD] [TD][URL='http://www.alliantpowder.com/products/powder/reloder33.aspx']Reloder 33[/URL][/TD] [TD]85.7[/TD] [TD]3,033[/TD] [TD][CENTER]-[/CENTER][/TD] [/TR] [/TABLE] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
7mm STW
169gr Hammer Hunter in 7 STW
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