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Rifles, Reloading, Optics, Equipment
Reloading
Does anyone see a difference using different primers?
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<blockquote data-quote="Hugnot" data-source="post: 2919811" data-attributes="member: 115658"><p>Yes, there is a difference that does not rely on shooting, barrels, components & other factors.</p><p></p><p>[URL unfurl="true"]https://arxiv.org/ftp/arxiv/papers/1203/1203.2701.pdf[/URL]</p><p></p><p>The academic stuff shows the Rem 7 1/2 has more blast, 2300 kilo pascals. As expected, these data also show Fed 215;s have more blast than comparable large rifle primers.</p><p></p><p>One example that became real obvious was the difference with charges of Staball 6.5 in the mid 40 grain amount with CCI 41's & Rem 7 1/2's.</p><p></p><p>Good results with the Rem 7 1/2's.</p><p></p><p>[ATTACH]500242[/ATTACH]</p><p></p><p>[ATTACH]500248[/ATTACH]</p><p></p><p>I just quit with the CCI 41's & Staball 6.5, groups about 1.5 inches at 100 and 2 sets of groups at 300 about 6-8 inches apart, up & down.</p><p></p><p>The CCI 41's work real good with AA4350 & H4350.</p><p></p><p></p><p>[ATTACH]500250[/ATTACH]</p><p></p><p>Sure looks like the Rem 7 1/2's are hotter than CCI 41's. Academic's data indicates Rem 7 1/2's are frisky primers, 2300 kilo pascals</p></blockquote><p></p>
[QUOTE="Hugnot, post: 2919811, member: 115658"] Yes, there is a difference that does not rely on shooting, barrels, components & other factors. [URL unfurl="true"]https://arxiv.org/ftp/arxiv/papers/1203/1203.2701.pdf[/URL] The academic stuff shows the Rem 7 1/2 has more blast, 2300 kilo pascals. As expected, these data also show Fed 215;s have more blast than comparable large rifle primers. One example that became real obvious was the difference with charges of Staball 6.5 in the mid 40 grain amount with CCI 41's & Rem 7 1/2's. Good results with the Rem 7 1/2's. [ATTACH alt="IMG_2034.JPG"]500242[/ATTACH] [ATTACH alt="Screenshot (715).png"]500248[/ATTACH] I just quit with the CCI 41's & Staball 6.5, groups about 1.5 inches at 100 and 2 sets of groups at 300 about 6-8 inches apart, up & down. The CCI 41's work real good with AA4350 & H4350. [ATTACH alt="IMG_1703.JPG"]500250[/ATTACH] Sure looks like the Rem 7 1/2's are hotter than CCI 41's. Academic's data indicates Rem 7 1/2's are frisky primers, 2300 kilo pascals [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Does anyone see a difference using different primers?
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