HIREDgun45 Posted March 31, 2020 Share Posted March 31, 2020 8 hours ago, MIGUEL said: I always talk about the real thing, not what I believe or think, here in Chile in the last 3 years 12 SVI pistols have entered, today there are 4 broken barrels, all people have been denied a guarantee, the percentage is 25 %, the reason they say is always the same, our pistols are made of the best materials. if you enter their website they say that their barrels are made of sae 4340, and my reality is that they added aisi 416. therefore to say that they always use the same material (defective aisi 416r), it would be to ensure that SVI deliberately misleads people offering one quality on their website and delivering another. on the other hand there is evidence that the aisi 416r does not work for barrels used in IPSC or USPSA.I hope I can have the peace of mind that SVI in my other 6 pistols that are not yet used put a good material, copy the emails above, but that still does not happen I have been waiting for technical certificates for several months to review and I still have no news So have you sent the barrel and slide back as requested by Sandy Strayer/SV? Link to comment Share on other sites More sharing options...
3GN Posted March 31, 2020 Share Posted March 31, 2020 So a squib, followed by another shot?Exactly Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
RangerTrace Posted March 31, 2020 Share Posted March 31, 2020 1 minute ago, 3GN said: Exactly Sent from my iPhone using Tapatalk That would make sense for it to blow up the barrel then. I'm not with Team Infinity and haven't been for years now. But they make great guns/parts and there isn't anyone any smarter than Sandy when it comes to building hi-cap pistols. Link to comment Share on other sites More sharing options...
MIGUEL Posted March 31, 2020 Author Share Posted March 31, 2020 20 minutes ago, HIREDgun45 said: So have you sent the barrel and slide back as requested by Sandy Strayer/SV? I will not send it until Sandy answers the email that is a few post above Link to comment Share on other sites More sharing options...
3GN Posted March 31, 2020 Share Posted March 31, 2020 That would make sense for it to blow up the barrel then. I'm not with Team Infinity and haven't been for years now. But they make great guns/parts and there isn't anyone any smarter than Sandy when it comes to building hi-cap pistols. Sandy know math for sure...Sent from my iPhone using Tapatalk Link to comment Share on other sites More sharing options...
barry Posted April 1, 2020 Share Posted April 1, 2020 A look at the case head of the round that was in chamber at the time would tell alot. If primer pocket is grossly oversize excess pressure. If normal looking except for missing front part of caseing barrel steel failure. Link to comment Share on other sites More sharing options...
shred Posted April 1, 2020 Share Posted April 1, 2020 Years ago we intentionally blew up a brand-new 9mm 1911 to see the failure mode. We fired a squib to stick a bullet in the barrel, then followed it up with a double-plus-charged round of fast powder and fired it with a long cord from behind armor. The bull barrel cracked lengthwise. Smoke came out all kinds of different places. Flatted the extractor. Slide was in pretty good shape-- rails bulged a little, but could be used again. The bullets (or most of them) actually left the barrel. From this one data point I surmise the larger damage as in the OP could have been caused by the barrel already being weakened before the final shot because otherwise the slide at least should have held together better. The posted lab results imply this as well, citing a slow-growing crack that finally failed completely. That would allow much more pressure to escape faster. How and why that crack got started I don't have an opinion on. Link to comment Share on other sites More sharing options...
Ming the Merciless Posted April 2, 2020 Share Posted April 2, 2020 9 hours ago, shred said: Years ago we intentionally blew up a brand-new 9mm 1911 to see the failure mode. We fired a squib to stick a bullet in the barrel, then followed it up with a double-plus-charged round of fast powder and fired it with a long cord from behind armor. The bull barrel cracked lengthwise. Smoke came out all kinds of different places. Flatted the extractor. Slide was in pretty good shape-- rails bulged a little, but could be used again. The bullets (or most of them) actually left the barrel. From this one data point I surmise the larger damage as in the OP could have been caused by the barrel already being weakened before the final shot because otherwise the slide at least should have held together better. The posted lab results imply this as well, citing a slow-growing crack that finally failed completely. That would allow much more pressure to escape faster. How and why that crack got started I don't have an opinion on. Do you remember if there was a visible indication in the barrel of where the squib bullet was? Link to comment Share on other sites More sharing options...
MIGUEL Posted April 2, 2020 Author Share Posted April 2, 2020 9 hours ago, Ming the Merciless said: Do you remember if there was a visible indication in the barrel of where the squib bullet was? the barrel broke, in the practice of unsheathing and precision to a plate at 25 meters, this was not a squib , I have it in my possession barrels, I will take many photos and share them with you, Link to comment Share on other sites More sharing options...
Jim Watson Posted April 2, 2020 Share Posted April 2, 2020 This thread is eerily similar to what I was reading earlier about the "low number" 1903 Springfield. Weak metal Bad ammo Bad luck Only a few "Mine's fine." Too bad the OP is far foreign and can't walk in and lay his barrel on Mr Strayer's desk. I couldn't bring up the link to the lab report. Link to comment Share on other sites More sharing options...
MIGUEL Posted April 2, 2020 Author Share Posted April 2, 2020 6 minutes ago, Jim Watson said: This thread is eerily similar to what I was reading earlier about the "low number" 1903 Springfield. Weak metal Bad ammo Bad luck Only a few "Mine's fine." Too bad the OP is far foreign and can't walk in and lay his barrel on Mr Strayer's desk. I couldn't bring up the link to the lab report. The first thing to keep in mind is that SVI from the beginning rejected any possibility that the material was defective, without even seeing the barrel, hence my doubt and sent to analyze the material. It is for this reason that I request the quality certificates of the other 6 pistols. Link to comment Share on other sites More sharing options...
HIREDgun45 Posted April 2, 2020 Share Posted April 2, 2020 (edited) 55 minutes ago, MIGUEL said: The first thing to keep in mind is that SVI from the beginning rejected any possibility that the material was defective, without even seeing the barrel, hence my doubt and sent to analyze the material. It is for this reason that I request the quality certificates of the other 6 pistols. The google drive file wasn't working for me either so I can't view the contents. So do you reject any possibility that this damage was due to user error and that the damage was caused by improperly reloaded ammo? Edited April 2, 2020 by HIREDgun45 Link to comment Share on other sites More sharing options...
MILDOTS Posted April 2, 2020 Share Posted April 2, 2020 When I started shooting my first gun was a 45 commander with a comp .Apparentley the last round of the match was a squib. After lunch I had my wife shoot at a new target, one shot two holes on a clean target. The barsto Barrel was split from the chamber to the comp, both sides. Thankfully the slide wasn’t damaged. Unfortunately my wife decided she didn’t want to start shooting with me. It was was squib in my opinion. Link to comment Share on other sites More sharing options...
MIGUEL Posted April 2, 2020 Author Share Posted April 2, 2020 44 minutes ago, MILDOTS said: When I started shooting my first gun was a 45 commander with a comp .Apparentley the last round of the match was a squib. After lunch I had my wife shoot at a new target, one shot two holes on a clean target. The barsto Barrel was split from the chamber to the comp, both sides. Thankfully the slide wasn’t damaged. Unfortunately my wife decided she didn’t want to start shooting with me. It was was squib in my opinion. There is an internal mark on the stretch marks, product of the squib in your pistol? Link to comment Share on other sites More sharing options...
MIGUEL Posted April 2, 2020 Author Share Posted April 2, 2020 1 hour ago, HIREDgun45 said: The google drive file wasn't working for me either so I can't view the contents. So do you reject any possibility that this damage was due to user error and that the damage was caused by improperly reloaded ammo? no place for a double charge in the brass Link to comment Share on other sites More sharing options...
MIGUEL Posted April 2, 2020 Author Share Posted April 2, 2020 7 hours ago, MIGUEL said: the barrel broke, in the practice of unsheathing and precision to a plate at 25 meters, this was not a squib , I have it in my possession barrels, I will take many photos and share them with you, take some photos with a nikon d 7000, but they are not very clear I must get a good lens for close photos, it will take a longer time. Link to comment Share on other sites More sharing options...
HIREDgun45 Posted April 2, 2020 Share Posted April 2, 2020 31 minutes ago, MIGUEL said: no place for a double charge in the brass I didn't mention anything about a double charge. I'm simply asking if your position is that there is no possibility that the ammo you used (during the life of the gun) caused a catastrophic failure. Link to comment Share on other sites More sharing options...
MIGUEL Posted April 2, 2020 Author Share Posted April 2, 2020 Just now, HIREDgun45 said: I didn't mention anything about a double charge. I'm simply asking if your position is that there is no possibility that the ammo you used (during the life of the gun) caused a catastrophic failure. definitely not, two weapons of different brands were fired in parallel, if ammunition is a problem it should affect the other weapon too, Link to comment Share on other sites More sharing options...
AHI Posted April 2, 2020 Share Posted April 2, 2020 On 2/2/2020 at 6:23 PM, MIGUEL said: i buy six pistol and only used two , the two barrels is break , 1 standard pistol and 1 open pistols what is the load for the standard pistol and do you use the same reloading press? Link to comment Share on other sites More sharing options...
shred Posted April 3, 2020 Share Posted April 3, 2020 22 hours ago, Ming the Merciless said: Do you remember if there was a visible indication in the barrel of where the squib bullet was? On the inside? It was just cracked, and I don't know if anyone bothered to cut it open any further, but if they did, I wasn't around to see. I've seen other blown-up barrels that have been sectioned or split completely apart and usually you can tell where the squib or barrel jacket was. Link to comment Share on other sites More sharing options...
Tanfoglio 38 super Posted April 3, 2020 Share Posted April 3, 2020 Here in the netherlands was also a blow up SVI. It was not mine gun. his name is Johan Lambregts. Maybe he is here on the forum. Link to comment Share on other sites More sharing options...
arkadi Posted April 3, 2020 Share Posted April 3, 2020 With a sample size of one, Glock 17 barrel survives firing against squib with a slight bulge. Link to comment Share on other sites More sharing options...
jschroep Posted April 3, 2020 Share Posted April 3, 2020 (edited) Can we get a working link to the report again? I'm not seeing what material is used on the SVI barrels on the website. Also in the original post it was stated that the material used to manufacture the barrels is 416R, That's the material that was recommended in the article that posted from schuemann. So was the original post wrong in saying that the barrel was made with 416R and it is actually made with 416? I really think it is irresponsible as a reloader to not consider that there could be quality issues with the ammo. It was also previously stated that bullet setback is not an issue with 38 super ( or was it 38 supercomp?) I have a hard time reconciling that in my engineering mind pressure should increase if volume decreases? IE the bullet is setback further in the case. Edited April 3, 2020 by jschroep Link to comment Share on other sites More sharing options...
arkadi Posted April 3, 2020 Share Posted April 3, 2020 How much setback exactly we're talking about? Proper Open powders like 3N38 or SP2 are safe with compressed loads in 9x19. 9x19 is 13.3gr of H2O and .38 Super is 17.6gr. I haven't filled .38 Super to the top but I shot 9x19 filled to the top with 3N38 and 115gn plated bullet - that's ~10.5gn of powder. Link to comment Share on other sites More sharing options...
TONY BARONE Posted April 4, 2020 Share Posted April 4, 2020 1 hour ago, arkadi said: How much setback exactly we're talking about? Proper Open powders like 3N38 or SP2 are safe with compressed loads in 9x19. 9x19 is 13.3gr of H2O and .38 Super is 17.6gr. I haven't filled .38 Super to the top but I shot 9x19 filled to the top with 3N38 and 115gn plated bullet - that's ~10.5gn of powder. The operator is loading 7.7 gr. enough room for bullet set back. Link to comment Share on other sites More sharing options...
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