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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Largest Or Best Long Range caliber
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<blockquote data-quote="Fiftydriver" data-source="post: 108231" data-attributes="member: 10"><p>Apapro,</p><p></p><p>I would suspect your running some serious pressures if your seeing those numbers from a 338-8mm Rem Mag, especailly at those barrel lengths.</p><p></p><p>DO not be fooled into thinking that as long as you see no pressure signs that the chamber pressures are safe. Velocity is a very good indicator of pressure and those specs are running very hot.</p><p></p><p>Any properly accurised rifle will generally show no stiff bolt lifts or sticky extractions at all until you are well past the working limits of the round.</p><p></p><p>I had one customer that I built a 257 STW for a couple years ago. He came back after a couple weeks, very happy with the accuracy of the rifle and the velocity he was getting, 3950 fps with a 100 gr bullet in a 28" barrel. I heard this and asked how his primer pockets were holding up. </p><p></p><p>He replies that was his only concern as he was loosening primer pockets. I told him with those velocities that was to be expected in that barrel length. He simply could niot understand because he could open the bolt with his little finger only and the cases just fell out of the chamber.</p><p></p><p>A properly built rifle will really hide alot of high pressure signs for the handloader to see. For that reason, a quality chrono is the best tool to have when predicting pressures. </p><p></p><p>Good Shooting!!</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 108231, member: 10"] Apapro, I would suspect your running some serious pressures if your seeing those numbers from a 338-8mm Rem Mag, especailly at those barrel lengths. DO not be fooled into thinking that as long as you see no pressure signs that the chamber pressures are safe. Velocity is a very good indicator of pressure and those specs are running very hot. Any properly accurised rifle will generally show no stiff bolt lifts or sticky extractions at all until you are well past the working limits of the round. I had one customer that I built a 257 STW for a couple years ago. He came back after a couple weeks, very happy with the accuracy of the rifle and the velocity he was getting, 3950 fps with a 100 gr bullet in a 28" barrel. I heard this and asked how his primer pockets were holding up. He replies that was his only concern as he was loosening primer pockets. I told him with those velocities that was to be expected in that barrel length. He simply could niot understand because he could open the bolt with his little finger only and the cases just fell out of the chamber. A properly built rifle will really hide alot of high pressure signs for the handloader to see. For that reason, a quality chrono is the best tool to have when predicting pressures. Good Shooting!! Kirby Allen(50) [/QUOTE]
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Largest Or Best Long Range caliber
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