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To go Improved or not on 338 Lapua
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<blockquote data-quote="Yrcan" data-source="post: 604763" data-attributes="member: 27493"><p>I am telling the truth about the velocity I get from using N570 powder.</p><p>We have shot over 2 chronys, and they bot said 909 m/sek.</p><p>The same powder, 97grs behind a 250 grs Scenar, came out at 990 m/sek (3248 fps).</p><p>I put all my data into Shooter, and shot that bullet out to 1300 meters, dead on. I don't have a calibrated chronograph, but I think it is pretty close. </p><p></p><p>I have now bought some Norma brass, and have 90 grs of N570 behind the 300 grs SMK. Will shoot tomorrow, and see what I get. Hope to be in the 860 m/sek area, then maybe caselife is longer, and also barrel life. The barrel cost me 1350 USD, so I hope it will last a while <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p><p></p><p>Good luck with your project. I know it will be a killer <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite2" alt=";)" title="Wink ;)" loading="lazy" data-shortname=";)" /></p><p></p><p></p><p>100 meters, 5 shot group.</p><p></p><p><img src="http://i772.photobucket.com/albums/yy7/kerognes/IMAG0345.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>300 meters, 5 shot group</p><p></p><p><img src="http://i772.photobucket.com/albums/yy7/kerognes/DSC01114.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>600 meters, 5 shot group, could have been better, but it was windy.</p><p></p><p><img src="http://i772.photobucket.com/albums/yy7/kerognes/IMAG0338.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p></p><p>The gun <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p><img src="http://i772.photobucket.com/albums/yy7/kerognes/DSC00950.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="Yrcan, post: 604763, member: 27493"] I am telling the truth about the velocity I get from using N570 powder. We have shot over 2 chronys, and they bot said 909 m/sek. The same powder, 97grs behind a 250 grs Scenar, came out at 990 m/sek (3248 fps). I put all my data into Shooter, and shot that bullet out to 1300 meters, dead on. I don't have a calibrated chronograph, but I think it is pretty close. I have now bought some Norma brass, and have 90 grs of N570 behind the 300 grs SMK. Will shoot tomorrow, and see what I get. Hope to be in the 860 m/sek area, then maybe caselife is longer, and also barrel life. The barrel cost me 1350 USD, so I hope it will last a while ;) Good luck with your project. I know it will be a killer ;) 100 meters, 5 shot group. [IMG]http://i772.photobucket.com/albums/yy7/kerognes/IMAG0345.jpg[/IMG] 300 meters, 5 shot group [IMG]http://i772.photobucket.com/albums/yy7/kerognes/DSC01114.jpg[/IMG] 600 meters, 5 shot group, could have been better, but it was windy. [IMG]http://i772.photobucket.com/albums/yy7/kerognes/IMAG0338.jpg[/IMG] The gun :) [IMG]http://i772.photobucket.com/albums/yy7/kerognes/DSC00950.jpg[/IMG] [/QUOTE]
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