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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
MV increases with every shot
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<blockquote data-quote="LoneTraveler" data-source="post: 1302048" data-attributes="member: 77249"><p>This is interesting. The chronograph is telling you what is happening.</p><p>Now the hunt to find what is causing it. </p><p>Have you tried shooting one shot, Clean the barrel. Shoot one shot and clean for a series of 5 shots. See if it will shoot the same FPS from a clean bore.</p><p>The barrel may be collecting bullet material, or collecting powder residue and the change is starting the velocity and pressure change upward. </p><p> </p><p>I ran into a similar incident with Win. 748 powder in a new factory 223 Rem. 700 Rem.</p><p>After 1 shot a Kano Kroil wet patch and a brown residue covered the patch where the jag held the patch in contact with the bore. Did not have my chronie with me at the range that day. </p><p>Good Luck in finding the cause and a cure for this problem.</p></blockquote><p></p>
[QUOTE="LoneTraveler, post: 1302048, member: 77249"] This is interesting. The chronograph is telling you what is happening. Now the hunt to find what is causing it. Have you tried shooting one shot, Clean the barrel. Shoot one shot and clean for a series of 5 shots. See if it will shoot the same FPS from a clean bore. The barrel may be collecting bullet material, or collecting powder residue and the change is starting the velocity and pressure change upward. I ran into a similar incident with Win. 748 powder in a new factory 223 Rem. 700 Rem. After 1 shot a Kano Kroil wet patch and a brown residue covered the patch where the jag held the patch in contact with the bore. Did not have my chronie with me at the range that day. Good Luck in finding the cause and a cure for this problem. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
MV increases with every shot
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