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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Drop chart for 7MM WSM
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<blockquote data-quote="dwm" data-source="post: 234910" data-attributes="member: 1136"><p>This may help for starting out ...</p><p> </p><p>I have a load for the 7WSM with 160 Accubonds that pretty much duplicates the factory Winchester Supreme CXP3 160 grain Accubonds. I had purchased a box of the 160 Accubond Win Supremes just for fun and found that they shot extremely well in a factory Savage model 16 FCSS. I did my best to duplicate the factory load and this is what I came up with.</p><p> </p><p>The load is 69.5 Gr H1000 (110% load ratio!) with Rem 9 1/2M primers seated to COL of 2.82", same overal length as the factory rounds. (seated way into the case and no where near the lands, probably work in a Remmy mag well) </p><p> </p><p>Chrony said they were going 3021 fps from a 24 inch barrel. (Quickload says 3051 fps - 62.9K psi) Published BC of the Nosler 160 Accubond is 0.531.</p><p> </p><p>You could start a bit low and work up to that load ...</p><p> </p><p>-----------------------------------------------------------</p><p> </p><p>So a drop chart (assuming a 160 grain Accubond - BC 0.531) that matches your 200 yd zero and drops 37.8 at 500 yds looks like this:</p><p> </p><p>.284 160 GR AB SP, 2980 ft/sec at muzzle, 200.0 yd zeroed.</p><p> </p><p> </p><p><span style="font-family: 'Courier New'">Range Height MOA</span></p><p><span style="font-family: 'Courier New'">(yds) (in) </span></p><p><span style="font-family: 'Courier New'">0 -1.50 0.00</span></p><p><span style="font-family: 'Courier New'">100 1.47 -1.41</span></p><p><span style="font-family: 'Courier New'">200 0.00 0.00</span></p><p><span style="font-family: 'Courier New'">300 -6.57 2.09</span></p><p><span style="font-family: 'Courier New'">400 -18.91 4.51</span></p><p><span style="font-family: 'Courier New'">500 -37.87 7.23</span></p><p><span style="font-family: 'Courier New'">600 -64.52 10.27</span></p><p> </p><p>with clicks as follows:</p><p> </p><p>Range (yd) Clicks</p><p>--------- ------</p><p><span style="font-family: 'Courier New'">0 0</span></p><p><span style="font-family: 'Courier New'">100 -6</span></p><p><span style="font-family: 'Courier New'">200 0</span></p><p><span style="font-family: 'Courier New'">300 8</span></p><p><span style="font-family: 'Courier New'">400 18</span></p><p><span style="font-family: 'Courier New'">500 29</span></p><p><span style="font-family: 'Courier New'">600 41</span></p><p> </p><p>PS, the velocity that matched your drop (assuming a 160 grain Accubond - BC 0.531) is 2980 fps.</p><p> </p><p>The published Winchester Supreme 7mm WSM Product Symbol: S7MMWSMCT drop chart can be found at:</p><p> </p><p><a href="http://www.winchester.com/products/catalog/cfrdetail.aspx?symbol=S7MMWSMCT&bn=5&type=31" target="_blank">Centerfire Rifle</a></p></blockquote><p></p>
[QUOTE="dwm, post: 234910, member: 1136"] This may help for starting out ... I have a load for the 7WSM with 160 Accubonds that pretty much duplicates the factory Winchester Supreme CXP3 160 grain Accubonds. I had purchased a box of the 160 Accubond Win Supremes just for fun and found that they shot extremely well in a factory Savage model 16 FCSS. I did my best to duplicate the factory load and this is what I came up with. The load is 69.5 Gr H1000 (110% load ratio!) with Rem 9 1/2M primers seated to COL of 2.82", same overal length as the factory rounds. (seated way into the case and no where near the lands, probably work in a Remmy mag well) Chrony said they were going 3021 fps from a 24 inch barrel. (Quickload says 3051 fps - 62.9K psi) Published BC of the Nosler 160 Accubond is 0.531. You could start a bit low and work up to that load ... ----------------------------------------------------------- So a drop chart (assuming a 160 grain Accubond - BC 0.531) that matches your 200 yd zero and drops 37.8 at 500 yds looks like this: .284 160 GR AB SP, 2980 ft/sec at muzzle, 200.0 yd zeroed. [FONT=Courier New]Range Height MOA[/FONT] [FONT=Courier New](yds) (in) [/FONT] [FONT=Courier New]0 -1.50 0.00[/FONT] [FONT=Courier New]100 1.47 -1.41[/FONT] [FONT=Courier New]200 0.00 0.00[/FONT] [FONT=Courier New]300 -6.57 2.09[/FONT] [FONT=Courier New]400 -18.91 4.51[/FONT] [FONT=Courier New]500 -37.87 7.23[/FONT] [FONT=Courier New]600 -64.52 10.27[/FONT] with clicks as follows: Range (yd) Clicks --------- ------ [FONT=Courier New]0 0[/FONT] [FONT=Courier New]100 -6[/FONT] [FONT=Courier New]200 0[/FONT] [FONT=Courier New]300 8[/FONT] [FONT=Courier New]400 18[/FONT] [FONT=Courier New]500 29[/FONT] [FONT=Courier New]600 41[/FONT] PS, the velocity that matched your drop (assuming a 160 grain Accubond - BC 0.531) is 2980 fps. The published Winchester Supreme 7mm WSM Product Symbol: S7MMWSMCT drop chart can be found at: [URL="http://www.winchester.com/products/catalog/cfrdetail.aspx?symbol=S7MMWSMCT&bn=5&type=31"]Centerfire Rifle[/URL] [/QUOTE]
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Drop chart for 7MM WSM
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