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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7 PRC SAAMI approved
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<blockquote data-quote=".300 Dakota" data-source="post: 2558672" data-attributes="member: 106514"><p>That would put it around 90 grains of water capacity if nothing else is modified (which it likely will be because the lawyers say we can't have a 7mm round that will chamber in a .308 barrel). That's WAY superior to the 7 Rem Mag, but not quite as harsh on throats as the hotter .28 Nosler, 7 STW, and 7 Ultra Mag. It will likely fit better in a standard long action like the .28 and not require an extra long version like the STW. It is a more efficient design than the STW, for sure. It should also have slightly less recoil and blast compared to the larger cases. I would not be surprised, however, to see it lengthened slightly and/or have the shoulder modified to prevent chambering in a .300 PRC chamber. In that configuration, it would be basically equal to the STW in capacity, but more efficient. I think it might make more sense to shorten it slighly, slightly lengthen the neck to best accommodate 195 VLDs or 197 SMKs and blow it out .010" or so to maintain capacity and prevent accidental loading into a .300 chamber. I think topping out about 87 - 89 grains of water makes the most sense for a 7mm. Keeping the design very efficient and increasing barrel life a little more makes more sense to me. There would be plenty of power there for propelling the heaviest 7mm bullets to extreme ranges keeping with a 65,000 psi max avg. pressure. I think a little less is more for this bore diameter at the top of the power spectrum.</p></blockquote><p></p>
[QUOTE=".300 Dakota, post: 2558672, member: 106514"] That would put it around 90 grains of water capacity if nothing else is modified (which it likely will be because the lawyers say we can't have a 7mm round that will chamber in a .308 barrel). That's WAY superior to the 7 Rem Mag, but not quite as harsh on throats as the hotter .28 Nosler, 7 STW, and 7 Ultra Mag. It will likely fit better in a standard long action like the .28 and not require an extra long version like the STW. It is a more efficient design than the STW, for sure. It should also have slightly less recoil and blast compared to the larger cases. I would not be surprised, however, to see it lengthened slightly and/or have the shoulder modified to prevent chambering in a .300 PRC chamber. In that configuration, it would be basically equal to the STW in capacity, but more efficient. I think it might make more sense to shorten it slighly, slightly lengthen the neck to best accommodate 195 VLDs or 197 SMKs and blow it out .010" or so to maintain capacity and prevent accidental loading into a .300 chamber. I think topping out about 87 - 89 grains of water makes the most sense for a 7mm. Keeping the design very efficient and increasing barrel life a little more makes more sense to me. There would be plenty of power there for propelling the heaviest 7mm bullets to extreme ranges keeping with a 65,000 psi max avg. pressure. I think a little less is more for this bore diameter at the top of the power spectrum. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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7 PRC SAAMI approved
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