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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
30 cal bore groove
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<blockquote data-quote="KriegerBarrels" data-source="post: 282939" data-attributes="member: 12876"><p>The .298" bore was designed for a bullet with a short bearing surface such as the 155 grain Palma bullets from both Sierra and Berger. If you start pushing heavy bullets with long bearing surfaces through a tight bore, then add the high pressures of one of these cartridges (RUM or Lapua) to it you could spike pressures beyond a safe level. You would be better served with a standard bore/groove (.300/.308) with this combination.</p><p> </p><p>We do not recomend a tight bore for any bullet heavier than a 168, and only in .308 Win or a lighter pressure cartridge.</p></blockquote><p></p>
[QUOTE="KriegerBarrels, post: 282939, member: 12876"] The .298" bore was designed for a bullet with a short bearing surface such as the 155 grain Palma bullets from both Sierra and Berger. If you start pushing heavy bullets with long bearing surfaces through a tight bore, then add the high pressures of one of these cartridges (RUM or Lapua) to it you could spike pressures beyond a safe level. You would be better served with a standard bore/groove (.300/.308) with this combination. We do not recomend a tight bore for any bullet heavier than a 168, and only in .308 Win or a lighter pressure cartridge. [/QUOTE]
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Rifles, Bullets, Barrels & Ballistics
30 cal bore groove
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