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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 PRC Barrel Length 24"vs 26" Velocity
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<blockquote data-quote="G. Neely" data-source="post: 1908796" data-attributes="member: 107538"><p>Hopefully this will help, as our equipment is somewhat similar. I am running a 26 inch, 1 in 8 twist barrel on a Curtis Helix action, ,caliber 6.5 PRC. I did my breakin with Hornady factory 147 grain ELDM and 143 grain ELDX ammunition. I used a Magnetospeed Sportster to measure velocities.</p><p></p><p>The ELDM (during break-in) ran consistently around 2950 fps, with one round that dropped 50 fps for unknown reasons. Accuracy was good, with rounds 16 thru 20 grouping around .674 at 100 yards and decent weather with a negligible wind from about 5:30. The 143 ELDX rounds averaged 2989 fps for 17 rounds. I didn't fire the last 3 because accuracy was severely degraded to the point that I began checking for loose screws, etc. Runout on the three unfired rounds was later measured as .012 max, with a minimum of .006 Extreme spread for the ELDX ammo was 61, SD was 24 for those 17 rounds.</p><p></p><p>I've moved on to ADG brass and am still fire-forming, but on a lark, picked a load out of a hat and fired 20 rounds loaded with 55 grains of H1000 and 140 grain Accubonds. Velocity averaged 2846 fps with an ES of 36 and an SD of 11. Obviously, the load needs work, and I haven't established much at this point.</p><p></p><p>In summary, the Hornady ELDM ammo is pretty fair stuff in this equipment. I realize that the numbers will change as the rifle settles in, but thought this might help.</p></blockquote><p></p>
[QUOTE="G. Neely, post: 1908796, member: 107538"] Hopefully this will help, as our equipment is somewhat similar. I am running a 26 inch, 1 in 8 twist barrel on a Curtis Helix action, ,caliber 6.5 PRC. I did my breakin with Hornady factory 147 grain ELDM and 143 grain ELDX ammunition. I used a Magnetospeed Sportster to measure velocities. The ELDM (during break-in) ran consistently around 2950 fps, with one round that dropped 50 fps for unknown reasons. Accuracy was good, with rounds 16 thru 20 grouping around .674 at 100 yards and decent weather with a negligible wind from about 5:30. The 143 ELDX rounds averaged 2989 fps for 17 rounds. I didn't fire the last 3 because accuracy was severely degraded to the point that I began checking for loose screws, etc. Runout on the three unfired rounds was later measured as .012 max, with a minimum of .006 Extreme spread for the ELDX ammo was 61, SD was 24 for those 17 rounds. I've moved on to ADG brass and am still fire-forming, but on a lark, picked a load out of a hat and fired 20 rounds loaded with 55 grains of H1000 and 140 grain Accubonds. Velocity averaged 2846 fps with an ES of 36 and an SD of 11. Obviously, the load needs work, and I haven't established much at this point. In summary, the Hornady ELDM ammo is pretty fair stuff in this equipment. I realize that the numbers will change as the rifle settles in, but thought this might help. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 PRC Barrel Length 24"vs 26" Velocity
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