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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
How to blowup your rifle
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<blockquote data-quote="Muddyboots" data-source="post: 1589258" data-attributes="member: 63925"><p>I think it is safe to say the op is an experienced reloader based upon the statements. Detonation still seems to be a possible culprit but how would it be possible under the conditions described? I read a long time ago about a detonation that might have been caused by sizing lube in neck causing the powder to cause a "bridge" down in the case thus air gap. I've tried to find this discussion but no avail but it was in a paper that I read probably before most here were born!<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /> So not likely on the interweb....</p><p></p><p>Copper fouling on how many shots? That would be more disturbing to me that a barrel fouled in that short order thus causing massive pressure spikes. If that was the case, bullet manufacturers would be adding a warning to their product safety to warn users to clean after so many rounds or prevent bullet mix at range. Not seeing that.</p><p></p><p>Bullet somehow got too close to lands? I measure every single round by the ogive not sure everyone does but I bet op does.</p><p></p><p>By chance was there a minuscule crack in neck that cannot be seen that allowed round COAL to shift back unnoticed into the case? </p><p></p><p>Bullet cold solder to the inside neck is a wild thought but is only associated with using certain neck lubes. What was the neck lube and how long was the load in case? Not long it sounds so probable cause not likely.</p><p></p><p>Any possibility something got into the chamber that coated the walls? Even water can cause potentially dangerous pressures since brass fails to "grip" the chamber walls.</p><p></p><p>Question for op: Were all the loads from same powder container, primer package, bullet box? I think I would send a sample to Hodgdon just to be sure it was Retumbo etc.</p><p></p><p>Since it was -10 I doubt a bug crawled up into barrel. I feel pretty confident on that potential.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll Eyes :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /></p><p></p><p>This is another reason why this site is great for all. The op bared his soul by posting this up for all to see expecting the best and maybe the worse but with full intent to possibly find root cause and prevent re-occurrence. Personally I thank you for posting this, I bet many of us are double and triple checking what we assumed to be safe going forward.</p></blockquote><p></p>
[QUOTE="Muddyboots, post: 1589258, member: 63925"] I think it is safe to say the op is an experienced reloader based upon the statements. Detonation still seems to be a possible culprit but how would it be possible under the conditions described? I read a long time ago about a detonation that might have been caused by sizing lube in neck causing the powder to cause a "bridge" down in the case thus air gap. I've tried to find this discussion but no avail but it was in a paper that I read probably before most here were born!:D So not likely on the interweb.... Copper fouling on how many shots? That would be more disturbing to me that a barrel fouled in that short order thus causing massive pressure spikes. If that was the case, bullet manufacturers would be adding a warning to their product safety to warn users to clean after so many rounds or prevent bullet mix at range. Not seeing that. Bullet somehow got too close to lands? I measure every single round by the ogive not sure everyone does but I bet op does. By chance was there a minuscule crack in neck that cannot be seen that allowed round COAL to shift back unnoticed into the case? Bullet cold solder to the inside neck is a wild thought but is only associated with using certain neck lubes. What was the neck lube and how long was the load in case? Not long it sounds so probable cause not likely. Any possibility something got into the chamber that coated the walls? Even water can cause potentially dangerous pressures since brass fails to "grip" the chamber walls. Question for op: Were all the loads from same powder container, primer package, bullet box? I think I would send a sample to Hodgdon just to be sure it was Retumbo etc. Since it was -10 I doubt a bug crawled up into barrel. I feel pretty confident on that potential.:rolleyes: This is another reason why this site is great for all. The op bared his soul by posting this up for all to see expecting the best and maybe the worse but with full intent to possibly find root cause and prevent re-occurrence. Personally I thank you for posting this, I bet many of us are double and triple checking what we assumed to be safe going forward. [/QUOTE]
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