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Hunting
Long Range Hunting & Shooting
7mm/300 lapua
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<blockquote data-quote="Fiftydriver" data-source="post: 218929" data-attributes="member: 10"><p>Capacity wise, the 7mm-338 Lapua has nearly identical case capacity to the 7mm RUM, within a grain or two in capacity. IF your going to stay with this class of capacity, you probably would be better with the RUM in a factory receiver.</p><p> </p><p>Yes, the 7mm Lapua could be loaded to higher chamber pressure but the advantage would not be all that great over the RUM.</p><p> </p><p>My AM is a dramatic change in the Lapua case. shoulder location is moved forward roughly 50 thou, shoulder angle sharpened and body taper set at min. Case capacity is easily 10% over the RUM or 7mm Lapua.</p><p> </p><p>With any of these, your best served with heavy bullets. 160 is what I recommend as minimum to get these large capacity cases working consistantly. Heavier is even better. 180 grs are great, I have heard the 189 Caut bullets are very good also. The 200 gr ULD RBBT is the best I have used in my AM but only with the very slowest surplus ball powders.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 218929, member: 10"] Capacity wise, the 7mm-338 Lapua has nearly identical case capacity to the 7mm RUM, within a grain or two in capacity. IF your going to stay with this class of capacity, you probably would be better with the RUM in a factory receiver. Yes, the 7mm Lapua could be loaded to higher chamber pressure but the advantage would not be all that great over the RUM. My AM is a dramatic change in the Lapua case. shoulder location is moved forward roughly 50 thou, shoulder angle sharpened and body taper set at min. Case capacity is easily 10% over the RUM or 7mm Lapua. With any of these, your best served with heavy bullets. 160 is what I recommend as minimum to get these large capacity cases working consistantly. Heavier is even better. 180 grs are great, I have heard the 189 Caut bullets are very good also. The 200 gr ULD RBBT is the best I have used in my AM but only with the very slowest surplus ball powders. [/QUOTE]
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7mm/300 lapua
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