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Long Range Hunting & Shooting
6.5 PRC issues
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<blockquote data-quote="Jepp577" data-source="post: 2739913" data-attributes="member: 94337"><p>When I read this response, (knowing that the OP has shot this factory ammo a single time), a thought came to me as it pertained to "multiple pressure factors". Clearly there were some obvious issues taking place (likely more than one) and reasonable offered opinions discussed that I'm in agreement with. I'll share and experience I've had. A thing that I don't think has been discussed. The experience I had was shooting a short-barreled 300 PRC that I was shooting suppressed late in the year when the temperatures were somewhat colder. I was shooting factory Hornady 300 PRC match ammo. I started to get some excessive pressures which were quite visible on the cases. Upon inspection of what was taking place I noticed, having chambered a round and then extracting it without firing it, that the case appeared to have some condensation / water droplets on it. Hence a wet chamber. Some of my fired cases had showed some residue on the sides of the case that looked like smeared powder residue caused by moisture. The OP did state that he was shooting this rifle suppressed. It caused me to wonder what the temperatures outside were like when he was shooting. Based on the experience I had, my situational conclusion that I was coming up with was that the suppressor was containing heat, as they always do, which was backdrafting into the chamber, the temperatures outside being colder, the combination created condensation in the chamber lending to overpressure. Has anyone else ever experienced this when shooting suppressed in colder temps?</p></blockquote><p></p>
[QUOTE="Jepp577, post: 2739913, member: 94337"] When I read this response, (knowing that the OP has shot this factory ammo a single time), a thought came to me as it pertained to “multiple pressure factors”. Clearly there were some obvious issues taking place (likely more than one) and reasonable offered opinions discussed that I’m in agreement with. I’ll share and experience I’ve had. A thing that I don’t think has been discussed. The experience I had was shooting a short-barreled 300 PRC that I was shooting suppressed late in the year when the temperatures were somewhat colder. I was shooting factory Hornady 300 PRC match ammo. I started to get some excessive pressures which were quite visible on the cases. Upon inspection of what was taking place I noticed, having chambered a round and then extracting it without firing it, that the case appeared to have some condensation / water droplets on it. Hence a wet chamber. Some of my fired cases had showed some residue on the sides of the case that looked like smeared powder residue caused by moisture. The OP did state that he was shooting this rifle suppressed. It caused me to wonder what the temperatures outside were like when he was shooting. Based on the experience I had, my situational conclusion that I was coming up with was that the suppressor was containing heat, as they always do, which was backdrafting into the chamber, the temperatures outside being colder, the combination created condensation in the chamber lending to overpressure. Has anyone else ever experienced this when shooting suppressed in colder temps? [/QUOTE]
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