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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Temp sensitivity of RL powders. Never seems to be a problem with me. WTH?
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<blockquote data-quote="Pdvdh" data-source="post: 711467" data-attributes="member: 4191"><p>Michael,</p><p></p><p>I'm wondering if your rifle was 14F when you chambered the rounds that were 114F. And if so, how long were the rounds in the chamber before you fired them over your chronograph. </p><p></p><p>When I've compared cold temperature MV to higher temperature muzzle velocity, I've placed the entire rifle in a freezer so both the rifle chamber and ammo come down to temperature. My higher temperature tests are limited to about 75F room temperature using this approach. But I don't have to worry about how quickly a cold chamber cools down warm ammo or a warm chamber warms up cold ammo before I fire the round over the chronographs.</p><p></p><p>I've not shot RL powders very much over my chrono setup and therefore have no first hand data to report. I have spent some time chronographing cold versus warm loads with a few IMR and Hodgdon powders.</p></blockquote><p></p>
[QUOTE="Pdvdh, post: 711467, member: 4191"] Michael, I'm wondering if your rifle was 14F when you chambered the rounds that were 114F. And if so, how long were the rounds in the chamber before you fired them over your chronograph. When I've compared cold temperature MV to higher temperature muzzle velocity, I've placed the entire rifle in a freezer so both the rifle chamber and ammo come down to temperature. My higher temperature tests are limited to about 75F room temperature using this approach. But I don't have to worry about how quickly a cold chamber cools down warm ammo or a warm chamber warms up cold ammo before I fire the round over the chronographs. I've not shot RL powders very much over my chrono setup and therefore have no first hand data to report. I have spent some time chronographing cold versus warm loads with a few IMR and Hodgdon powders. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Temp sensitivity of RL powders. Never seems to be a problem with me. WTH?
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