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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
My shiny new light .338 Norma Magnum build thread!!
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<blockquote data-quote="adamjp" data-source="post: 1820490" data-attributes="member: 40749"><p>The argument is that the larger case head imparts more force on the bolt locking lugs than a similarly pressured case with a smaller head. This is based upon the real results of hydraulic rams which exert more force with greater diameter.</p><p></p><p>It is an argument most often pushed by those who make larger actions. When I was scouting around for my 338 Norma, I even had one bloke tell me that Remington no longer made the 338 Lapua because too many had failed. Funny thing is, they still make the rifle AND I've heard nothing about a widespread problem of Rem 700 338 Lapua failures. No product recall, no court cases. </p><p></p><p>Kept within design pressures the cartridge and action combination is safe.</p><p></p><p>The argument does not take into account that any pressure in the case is exerted as force equally on the pressure vessel locking mechanism (ie. bolt locking lugs) irrespective of the case head dia.</p></blockquote><p></p>
[QUOTE="adamjp, post: 1820490, member: 40749"] The argument is that the larger case head imparts more force on the bolt locking lugs than a similarly pressured case with a smaller head. This is based upon the real results of hydraulic rams which exert more force with greater diameter. It is an argument most often pushed by those who make larger actions. When I was scouting around for my 338 Norma, I even had one bloke tell me that Remington no longer made the 338 Lapua because too many had failed. Funny thing is, they still make the rifle AND I've heard nothing about a widespread problem of Rem 700 338 Lapua failures. No product recall, no court cases. Kept within design pressures the cartridge and action combination is safe. The argument does not take into account that any pressure in the case is exerted as force equally on the pressure vessel locking mechanism (ie. bolt locking lugs) irrespective of the case head dia. [/QUOTE]
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My shiny new light .338 Norma Magnum build thread!!
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