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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
444 marlin
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<blockquote data-quote="J E Custom" data-source="post: 1995001" data-attributes="member: 2736"><p>Marlin made the 444 in two barrel lengths(24")and the longer one definitely has an advantage in energy and velocity. They are getting harder to find, but I still see a few for sale. So you may be able to find one.</p><p></p><p>As for lever action strength, I would have to disagree that they are as strong as bolt actions. </p><p></p><p>The 444 max design pressure is 44,000 PSI Most bottleneck cartridges are designed to operate from 53,000 PSI to 65,000 PSI. with a few in the 48,000 Psi range.</p><p></p><p>The only lever actions that are capable of the 65,000 Psi pressures are the falling block actions like the Ruger and the browning high wall. Many loading manuals have three different load requirements for the same cartridge in different actions.</p><p>The 45/70 is just one of these. </p><p>The design pressure of the trapdoor is 28,000. in the lever rifles like the Winchester it is 40,000 due to the bolt loading from the larger case head.</p><p>Due to case strength of the 45/70 maximum pressures are held to 50,000 Psi in modern bolt action rifles and falling blocks.</p><p></p><p>So Don't assume that the marlin is as strong as a bolt action !!! Even the 450 marlin is held to 43,500 Psi even though it is a modern design, But it is still a Winchester/marlin designed Action and has strength limits.</p><p></p><p>As far as the Single shot TC Encore Actions (Not the contender)they are designed for cartridges in the 55,000 Psi to 65,000 psi range.</p><p></p><p>Never exceed the load data pressures for a cartridge because of action or case design. <img class="smilie smilie--emoji" loading="lazy" alt="👍" title="Thumbs up :thumbsup:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" data-shortname=":thumbsup:" /> <img class="smilie smilie--emoji" loading="lazy" alt="👍" title="Thumbs up :thumbsup:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" data-shortname=":thumbsup:" /> <img class="smilie smilie--emoji" loading="lazy" alt="👍" title="Thumbs up :thumbsup:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f44d.png" data-shortname=":thumbsup:" /></p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1995001, member: 2736"] Marlin made the 444 in two barrel lengths(24")and the longer one definitely has an advantage in energy and velocity. They are getting harder to find, but I still see a few for sale. So you may be able to find one. As for lever action strength, I would have to disagree that they are as strong as bolt actions. The 444 max design pressure is 44,000 PSI Most bottleneck cartridges are designed to operate from 53,000 PSI to 65,000 PSI. with a few in the 48,000 Psi range. The only lever actions that are capable of the 65,000 Psi pressures are the falling block actions like the Ruger and the browning high wall. Many loading manuals have three different load requirements for the same cartridge in different actions. The 45/70 is just one of these. The design pressure of the trapdoor is 28,000. in the lever rifles like the Winchester it is 40,000 due to the bolt loading from the larger case head. Due to case strength of the 45/70 maximum pressures are held to 50,000 Psi in modern bolt action rifles and falling blocks. So Don't assume that the marlin is as strong as a bolt action !!! Even the 450 marlin is held to 43,500 Psi even though it is a modern design, But it is still a Winchester/marlin designed Action and has strength limits. As far as the Single shot TC Encore Actions (Not the contender)they are designed for cartridges in the 55,000 Psi to 65,000 psi range. Never exceed the load data pressures for a cartridge because of action or case design. 👍 👍 👍 J E CUSTOM [/QUOTE]
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