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Rifles, Reloading, Optics, Equipment
Reloading
Lapua 6.5 Creedmoor brass
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<blockquote data-quote="Idaho Trecker" data-source="post: 1302348" data-attributes="member: 67706"><p>Doesnt appear like anyone has given it a go yet with a factory rifle and standard firing pin (or at least hasnt shared) so I went for it... I am running a factory Ruger American Predator which has a 22" barrel. I have heard that pierced primers can be one effect of the large firing pin on small primer but luckily I did not have that happen so far. I did a very small test just to see how they would act. Here is what I found.</p><p></p><p>new Lapua brass ran through whidden bushing die leaving .003 neck tension</p><p>2.800" COL</p><p>42, 43, 44 grains H100V (one shot each over Magnetospeed)</p><p>CCI BR-4</p><p>2671, 2700, 2727 fps respectively </p><p>All primers appeared to have very deep primer strike (when compared to cci 200 primers from hornady brass) but none pierced. They were not overly flattened or cratered just deep strikes. </p><p></p><p>Since I dont have a ton of small rifle primer choices on hand I tried the only other 2 I had with one shot apiece at the 42 grain load. </p><p>The next primer I tried was a CCI 400 which looked almost similar to the BR-4 but it only clocked in at 2632 fps.</p><p>Last was the CCI 450. This primer didnt have as deep of a primer strike but it was definately cratered and only put 2617 fps.</p><p></p><p>Take what you want from this very small sample but I think I will be having my bolt bushed down.</p></blockquote><p></p>
[QUOTE="Idaho Trecker, post: 1302348, member: 67706"] Doesnt appear like anyone has given it a go yet with a factory rifle and standard firing pin (or at least hasnt shared) so I went for it... I am running a factory Ruger American Predator which has a 22" barrel. I have heard that pierced primers can be one effect of the large firing pin on small primer but luckily I did not have that happen so far. I did a very small test just to see how they would act. Here is what I found. new Lapua brass ran through whidden bushing die leaving .003 neck tension 2.800" COL 42, 43, 44 grains H100V (one shot each over Magnetospeed) CCI BR-4 2671, 2700, 2727 fps respectively All primers appeared to have very deep primer strike (when compared to cci 200 primers from hornady brass) but none pierced. They were not overly flattened or cratered just deep strikes. Since I dont have a ton of small rifle primer choices on hand I tried the only other 2 I had with one shot apiece at the 42 grain load. The next primer I tried was a CCI 400 which looked almost similar to the BR-4 but it only clocked in at 2632 fps. Last was the CCI 450. This primer didnt have as deep of a primer strike but it was definately cratered and only put 2617 fps. Take what you want from this very small sample but I think I will be having my bolt bushed down. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Lapua 6.5 Creedmoor brass
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