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Rifles, Reloading, Optics, Equipment
Reloading
Increase in pressure?
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<blockquote data-quote="Ucsdryder" data-source="post: 2632429" data-attributes="member: 94543"><p>7saum - load development done with 20-50 rounds of fired brass. Now at 200 plus I'm getting pressure. I saw a significant barrel speed up around 100. I dropped from 64.2 or h1000 to 63.8 and STILL seeing heavy bolt lift and ejector marks. Also getting a bolt click at the top. 180 eldm and ADG brass. </p><p></p><p>I also loaded some 145 CEB at a very mild load, about 1 grain under pressure at the same time I did my eldm load development and those are also showing a hard bolt lift and click now. </p><p></p><p>Carbon ring?</p><p></p><p>The brass has been run hard due to the increase in pressure and multiple reloads have had ejector marks as I try to figure it out. Could the brass be "blown out" at this point causing the pressure and click?</p><p></p><p>Something else? I cleaned the barrel and it has about 40 rounds after cleaning. The jump is around .120" so definitely not close to the lands.</p></blockquote><p></p>
[QUOTE="Ucsdryder, post: 2632429, member: 94543"] 7saum - load development done with 20-50 rounds of fired brass. Now at 200 plus I’m getting pressure. I saw a significant barrel speed up around 100. I dropped from 64.2 or h1000 to 63.8 and STILL seeing heavy bolt lift and ejector marks. Also getting a bolt click at the top. 180 eldm and ADG brass. I also loaded some 145 CEB at a very mild load, about 1 grain under pressure at the same time I did my eldm load development and those are also showing a hard bolt lift and click now. Carbon ring? The brass has been run hard due to the increase in pressure and multiple reloads have had ejector marks as I try to figure it out. Could the brass be “blown out” at this point causing the pressure and click? Something else? I cleaned the barrel and it has about 40 rounds after cleaning. The jump is around .120” so definitely not close to the lands. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Increase in pressure?
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