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Rifles, Reloading, Optics, Equipment
Reloading
LabRadar - tips and tricks to keep it from missing shots anyone?
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<blockquote data-quote="Mike6158" data-source="post: 2812728" data-attributes="member: 1039"><p>I only shot the first group and 1 from the 2nd group for the 7mm Rem Mag so nothing useful there. I shot all of the .308 groups and had some promising data.</p><p>Powder: RE15 Min: 41.6gr / Max: 46.2gr (compressed)</p><p>CCI Large Rifle Primer</p><p>New Lapua Brass No prep (not required)</p><p>Bullet: 168gr TTSX. Seated COL 2.810 (max from the book)</p><p>Book velocity range: 2,525 - 2,785 fps</p><p>I shot at targets to give me something to point the LaRadar at. I'm debating whether to shoot with the powder charge in group 9 again or just start the seating depth test. If the later then the next rounds will be into targets to check for groups by seating depth. </p><p></p><p>I'll shoot at 100 yards. <strong>My scope </strong>is getting older and even thought it's a Nightforce NXS <strong>"it's"</strong> not as sharp as it used to be at 200 yards. Might move to 200 yards at the end just to see what happens. </p><p></p><p>I'm going to start at COL and move the bullet out an as yet undetermined amount per step. I may take another stab at trying to find jam on work backwards for jam minus .020. I don't mind single shot loading some of my rifles and this is one of them.</p><p></p><p>Data from the LabRadar</p><p></p><p>Group 3 42.5gr</p><p>2,560</p><p>2,530</p><p>2,549</p><p>ES 29.62</p><p>SD 15.00</p><p></p><p>Group 6 44.0gr</p><p>2,650</p><p>2,624</p><p>2,647</p><p>ES 26.1</p><p>SD 14.29</p><p></p><p>Group 7 44.5gr <strong>Not terrible</strong></p><p>2,687</p><p>2,685</p><p>2,680</p><p>ES 7.18</p><p>SD 3.69</p><p></p><p>Forgot to start a new series on group 10 so these were combined and the LabRadar didn't give me ES or SD for the 3 shot strings.</p><p></p><p>Group 9 45.5gr <strong>I really like this one</strong></p><p>2,739</p><p>2,741</p><p>2,741</p><p>ES na</p><p>SD na</p><p></p><p>Group 10 46.0gr</p><p>2,748</p><p>2,737</p><p>2,738</p><p>ES na</p><p>SD na</p><p></p><p>The missing groups had ES and SD higher than the worst of this set of groups.</p></blockquote><p></p>
[QUOTE="Mike6158, post: 2812728, member: 1039"] I only shot the first group and 1 from the 2nd group for the 7mm Rem Mag so nothing useful there. I shot all of the .308 groups and had some promising data. Powder: RE15 Min: 41.6gr / Max: 46.2gr (compressed) CCI Large Rifle Primer New Lapua Brass No prep (not required) Bullet: 168gr TTSX. Seated COL 2.810 (max from the book) Book velocity range: 2,525 - 2,785 fps I shot at targets to give me something to point the LaRadar at. I'm debating whether to shoot with the powder charge in group 9 again or just start the seating depth test. If the later then the next rounds will be into targets to check for groups by seating depth. I'll shoot at 100 yards. [B]My scope [/B]is getting older and even thought it's a Nightforce NXS [B]"it's"[/B] not as sharp as it used to be at 200 yards. Might move to 200 yards at the end just to see what happens. I'm going to start at COL and move the bullet out an as yet undetermined amount per step. I may take another stab at trying to find jam on work backwards for jam minus .020. I don't mind single shot loading some of my rifles and this is one of them. Data from the LabRadar Group 3 42.5gr 2,560 2,530 2,549 ES 29.62 SD 15.00 Group 6 44.0gr 2,650 2,624 2,647 ES 26.1 SD 14.29 Group 7 44.5gr [B]Not terrible[/B] 2,687 2,685 2,680 ES 7.18 SD 3.69 Forgot to start a new series on group 10 so these were combined and the LabRadar didn't give me ES or SD for the 3 shot strings. Group 9 45.5gr [B]I really like this one[/B] 2,739 2,741 2,741 ES na SD na Group 10 46.0gr 2,748 2,737 2,738 ES na SD na The missing groups had ES and SD higher than the worst of this set of groups. [/QUOTE]
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LabRadar - tips and tricks to keep it from missing shots anyone?
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