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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 grain SMK velocities with .338 WinMag
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<blockquote data-quote="MontanaMarine" data-source="post: 23930" data-attributes="member: 268"><p>Here are some Quickload calculations,</p><p></p><p> With a 3.5" OAL, that 300gr Sierra is going to eat up a large amount of your case capacity, and still stick out an inch (assuming your rifle is throated to handle it). For the .338 Win, Q/L also lists a max PSI of 62.4K. </p><p></p><p>In a 26" barrel, Q/L predicts: </p><p>75gr RL-25 @ 2600 fps 62.1K Psi - casefull of 115.1% </p><p>76gr RL-25 @ OVER MAX PRESSURE - casefull of 116.7 % </p><p></p><p> RL-22 provides a nicely filled case and still reaches 2500+ fps in a 26" barrel. </p><p></p><p>68 grs RL-22 @ 2512 58.3K Psi - casefull 102.7% - - 32.4 % eff </p><p>69 grs RL-22 @ 2547 61.3K Psi - casefull 104.0% - - 32.9 % eff </p><p></p><p>MM</p></blockquote><p></p>
[QUOTE="MontanaMarine, post: 23930, member: 268"] Here are some Quickload calculations, With a 3.5" OAL, that 300gr Sierra is going to eat up a large amount of your case capacity, and still stick out an inch (assuming your rifle is throated to handle it). For the .338 Win, Q/L also lists a max PSI of 62.4K. In a 26" barrel, Q/L predicts: 75gr RL-25 @ 2600 fps 62.1K Psi - casefull of 115.1% 76gr RL-25 @ OVER MAX PRESSURE - casefull of 116.7 % RL-22 provides a nicely filled case and still reaches 2500+ fps in a 26" barrel. 68 grs RL-22 @ 2512 58.3K Psi - casefull 102.7% - - 32.4 % eff 69 grs RL-22 @ 2547 61.3K Psi - casefull 104.0% - - 32.9 % eff MM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 grain SMK velocities with .338 WinMag
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