tag:blogger.com,1999:blog-5044589671326360740.post8453468707005121840..comments2023-09-23T10:32:10.655-04:00Comments on Assorted Meanderings: 1911 Ka-BoomThe Jackhttp://www.blogger.com/profile/15173903164209256926noreply@blogger.comBlogger14125tag:blogger.com,1999:blog-5044589671326360740.post-56653994719821860842012-06-06T13:29:13.535-04:002012-06-06T13:29:13.535-04:00I beleive you may want to get rid of that reciever...I beleive you may want to get rid of that reciever/frame since it now (in the eyes of (the ATF) is a class III firearm.......Thomashttps://www.blogger.com/profile/17279097946597602013noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-44690678368302288032012-06-05T13:01:57.847-04:002012-06-05T13:01:57.847-04:00Tam:
Yeah, I considered that point. Problem is wit...Tam:<br />Yeah, I considered that point. Problem is with the 1911, the feeding cycle is designed to slide the rim under the extractor hook. My impression is that any protrusion sufficient to ignite the primer would catch the rim. Would be interesting to make an adjustable firing pin positioner to determine how much the brass could bounce over and if that would still cause ignition. Maybe a future project... <br /><br />I haven't had the chance to study the internals of open bolt guns. Most of my trigger time on FA weapons has been closed bolt. However, it is my impression that the feed cycle consists of the edge of the bolt smacking/bouncing the cartridge out of the mag, with the extractor(s) snapping over the rim as it actually fires. I doubt any of them utilize controlled feeding as the 1911 does. Just thinking of a bolt pushing/holding the cartridge with the firing pin against the primer makes me nervous!Willhttps://www.blogger.com/profile/00722792638246578812noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-78056367524265960152012-06-04T22:11:25.564-04:002012-06-04T22:11:25.564-04:00Will,
Depends on how far forward the firing pin i...Will,<br /><br />Depends on how far forward the firing pin is stuck, else most old open-bolt subguns with fixed FP's wouldn't work.Tamhttps://www.blogger.com/profile/07285540310465422476noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-13234779631708014402012-06-04T20:03:45.507-04:002012-06-04T20:03:45.507-04:00@Ed Skinner:
I do not think your scenario would w...@Ed Skinner:<br /><br />I do not think your scenario would work. During the loading cycle, the brass has to slide up the breechface, past the firing pin hole, to make it into the chamber. A protruding pin should catch on the top edge of the brass, jamming the action.<br /><br />I tried this out some years ago, by locking the firing pin forward using the blocking pin of a Colt Series 80. The only way to get a slam fire with this setup is to hand drop a round into the chamber first.<br /><br />I suspect the bent sear pin allowed the sear to release early, in a "hammer follow" fashion. Combined with a non-locked breach, due to debris perhaps, and you have your "kaboom".Willhttps://www.blogger.com/profile/00722792638246578812noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-15436926088640197382012-06-04T11:55:47.177-04:002012-06-04T11:55:47.177-04:00Damn Dude...Damn Dude...Mad Saint Jackhttps://www.blogger.com/profile/14289623562998116757noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-11530859331224479082012-06-04T10:01:03.130-04:002012-06-04T10:01:03.130-04:00"I thought he acted in accordance with the lo..."<i>I thought he acted in accordance with the longstanding tradition among airplane pilots to investigate every single accident and publish the results. That relentless self examination has been crucial for making airtravel, both commercial and private, as astonishingly safe as it is.</i>"<br /><br />100% agreement. I encountered a lot of that in the motorcycling and shooting communities. Understanding how mistakes are made helps to make them less common.Tamhttps://www.blogger.com/profile/07285540310465422476noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-33727006378898635412012-06-04T09:54:16.594-04:002012-06-04T09:54:16.594-04:00I had a similar ka-boom with a S&W model 39. ...I had a similar ka-boom with a S&W model 39. I loaded a hot load for my Hi-Power and tried them in the 39. The case blew out down the loading ramp, cracked the grips & dented the top round in the magazine. I found two problems.<br /><br />First, Hi-Power barrels slug 0.360/0.361. Model 39 barrels slug 0.354. A hot load in the Hi-Power was dangerous in tighter bores.<br /><br />Second, while .38 cases typically show what I call a circular failure, 9mm & .45 cases fail inside the case near the case head. Cases loaded with hot loads should be closely inspected before reloading and discarded sooner than lighter loads.Jerryhttps://www.blogger.com/profile/09512155016462081947noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-4670620127086128802012-06-04T09:53:55.887-04:002012-06-04T09:53:55.887-04:00a 50% too much powder load possibly started the tr...a 50% too much powder load possibly started the train of events by blowing a primer back and sticking it on the firing pin and holding it in the extended position that, as the bolt closed on the next round, caused the out of chamber bang that ended the sequence. Look for a spent shell with no primer.<br />And get a different powder measure/drop - the one you're using is either broken or otherwise not a good design. It just cost you a lot. Ditch it.Ed Skinnerhttps://www.blogger.com/profile/09332424242231481277noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-21829145727368382872012-06-04T09:14:56.239-04:002012-06-04T09:14:56.239-04:00G10 stocks are the way to go IMHO. Darn near bull...G10 stocks are the way to go IMHO. Darn near bulletproof!Tango Juliethttps://www.blogger.com/profile/07593296126387219845noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-80181504625140302842012-06-03T19:13:23.658-04:002012-06-03T19:13:23.658-04:00Remember the video awhile back of the guy demonstr...Remember the video awhile back of the guy demonstrating drawing from his holster, but who then shot himself in the leg?<br /><br />He got a lot of flack for putting that up on youtube. Not just for violating The Rules, but for making himself and by extension, everybody else with a gun, look like a fool.<br /><br />I thought he acted in accordance with the longstanding tradition among airplane pilots to investigate every single accident and publish the results. That relentless self examination has been crucial for making airtravel, both commercial and private, as astonishingly safe as it is.<br /><br />Same-same here. Unflinching investigation, willingness to examine your own operations, excellent reporting.<br /><br />First, work the problem. Assigning blame is irrelevant. <br /><br />Thanks for showing us how it's done.DJMooreTXhttps://www.blogger.com/profile/02987943889709227434noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-21597187315916558622012-06-03T19:07:27.042-04:002012-06-03T19:07:27.042-04:00Guns come and go. Glad you are not badly injured.
...Guns come and go. Glad you are not badly injured.<br /><br />I try to use "fluffy" powders and leave some overhead on my loads so that I am not up to the charge limits for that load. First, a high volume powder makes a double charge much more obvious. Second, if I have loads that throw a little heavy by a half to a grain or so, and I don't notice it, then I'm still in the safe zone for load pressure. <br /><br />As you said, a failure stack and it bit you. Could happen to me, you, or anyone, and again, glad you were not injured.ASM826https://www.blogger.com/profile/04017388670319590449noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-33126164243887310442012-06-03T13:04:21.408-04:002012-06-03T13:04:21.408-04:00That's why I'm thinking failure stack.
Th...That's why I'm thinking failure stack.<br /><br />The barrel looks fine.<br /><br />But combine too much charge, possibly damaged regular P case, and out of battery detonation...<br /><br />That'd do what I got.The Jackhttps://www.blogger.com/profile/15173903164209256926noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-13050093513911373642012-06-03T12:33:00.932-04:002012-06-03T12:33:00.932-04:00I don't have my reloading books handy, but wou...I don't have my reloading books handy, but would the highest charge of your powder exceed +P pressures?<br /><br />Kimber 1911s should be rated for +P ammo.Jonathan Bartelshttps://www.blogger.com/profile/01587393999230143108noreply@blogger.comtag:blogger.com,1999:blog-5044589671326360740.post-56956420885259185082012-06-03T08:52:07.797-04:002012-06-03T08:52:07.797-04:00Gun Writer Dean Grennell used to recommend the Pac...Gun Writer Dean Grennell used to recommend the Pachmayr wraparound grips for 1911 owners who shoot handloads extensively, because Pachmayr molded the Hypalon rubber around steel inserts, and this gave substantially better protection to the hand than wooden or plastic grips. (I can't say if current Pachmayr grips are made in the same way, you'd have to check).Bobhttps://www.blogger.com/profile/11402651457453813639noreply@blogger.com