[ARCHIVED THREAD] - Surplus ammo KB (Page 1 of 2)
Posted: 11/29/2009 7:26:55 PM EDT
Anyone know the story behind this pic? Supposedly shooter was using milsurp ammo. EDIT: you can see this is a 6.5X55 Swede |
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Wow. If I had to pick, I'd go with either the Turk or the Ecuadorian 8mm. Those are loaded pretty hot and very inconsistently. That is a Swedish Mauser. They shoot 6.5 and the only surplus I have seen in years is Swedish made high quality stuff. (Corroded, but good). Looks like a double charge re-load or a squib.. |
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Soft receiver? I remember seeing a warning about certain Mausers somewhere. Swedish Mausers are of the highest quality and the steel used in them is the best available, although the 96 design doesn't vent gases from a ruptured case as well as a 98 action |
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I bought a couple of battlepacks of surplus 6.5X55 Swede from SAMCO. The cases have a slightly coroded look; is this ammo okay to shoot? Will I be killed too? http://i264.photobucket.com/albums/ii173/USPx4/65x55.jpg Holy crap! Is that what that stuff look's like? What year is it? |
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I bought a couple of battlepacks of surplus 6.5X55 Swede from SAMCO. The cases have a slightly coroded look; is this ammo okay to shoot? Will I be killed too? http://i264.photobucket.com/albums/ii173/USPx4/65x55.jpg Holy crap! Is that what that stuff look's like? What year is it? Swedish Manf. 6.5X55 139 Gr FMJ 800 Rounds CALIBER: 6.5X55 BULLET TYPE: FMJ BULLET WEIGHT: 139 RELOADABLE: NO ROUNDS PER BOX: 20 BOXES PER CASE: 40 CASE WEIGHT: 51 LBS. OTHER FEATURES: SWEDISH MANUFACTURE, 1970'S PRODUCTION NON-CORROSIVE, BERDAN PRIMED, PACKED 20 ROUNDS PER BOX, 200 ROUNDS PER BATTLE PACK, 800 ROUNDS PER CASE (SOLD BY CASE) |
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http://lh3.ggpht.com/_sJ0b7qPo5Pc/SxNE1FaP-qI/AAAAAAAAC4M/eIQv4JlJTzE/s640/96%20Mauser.jpg Anyone know the story behind this pic? Supposedly shooter was using milsurp ammo. EDIT: you can see this is a 6.5X55 Swede I can't help but think there is more to it than mil surplus, in part because it is rare in 6.5x55. I think it would take a lot to blow up a Mauser action like that. I could see an over size bullet or reload with AA#2 causing that, maybe. |
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http://lh3.ggpht.com/_sJ0b7qPo5Pc/SxNE1FaP-qI/AAAAAAAAC4M/eIQv4JlJTzE/s640/96%20Mauser.jpg Anyone know the story behind this pic? Supposedly shooter was using milsurp ammo. EDIT: you can see this is a 6.5X55 Swede I can't help but think there is more to it than mil surplus, in part because it is rare in 6.5x55. I think it would take a lot to blow up a Mauser action like that. I could see an over size bullet or reload with AA#2 causing that, maybe. That is all the info I have on the KB. I got my ammo seen in the pic above from SAMCO. Now they have a disclaimer ***Ammo may be slightly corroded*** 
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I bought a couple of battlepacks of surplus 6.5X55 Swede from SAMCO. The cases have a slightly coroded look; is this ammo okay to shoot? Will I be killed too? http://i264.photobucket.com/albums/ii173/USPx4/65x55.jpg what happened to that ammo? My old Swede digested a bunch of that stuff, but it never looked like that. |
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Thats the second Swedish Mauser I've seen pics of that had ripped!
The first one was supposidly caused by the same issue that plauged the low numbered Springfields...brittle receivers. Although that receiver doesn't look shattered(like broken glass). Must remember that steel and heat treating was different in the old days. Also that the M96 Swedish Mauser doesn't have the ruptured case gas handling ability of the M98 Mausers. If I were to guess, probably old poorly stored ammo that over pressured and blew out the case head combined with a less than perfect receiver. The previous M96 I had seen pics of had shattered, and thats what was destroying the older single-heat treated Springfield and Rock Island 1903 rifles. The armory workers were judging the heat treat process by eye. As in how hot the part was by the color(orange, red, whatever). Getting the occasional receiver too hot and making it brittle. The 1903 rifles didn't really start causing trouble until WWI. Rifles were getting more use training troops and that sort of shit. The ammunition quality also declined as ammo production ramped up. While few rifles had issues prewar, wartime and postwar use saw the occasional blow-up. The combination of a brittle receiver and a bad cartridge was pretty much the story for the low numbered US 1903 rifles. The receivers could be just too hard and brittle, instead of nice and tough. One solution a money strapped postwar military used to keep old 1903 rifles in service was the 'Hatcher hole'. an extra gas relief hole drilled into the 1903 rifles to vent off gas in case of a burst cartridge. I would guess the cool old Swedish rifles are now suffering the same issues with extra hard receivers, bad ammo, and inadequate gas venting. A bit disconcerting because I own a beautiful 1904 made Carl Gustave M96 rifle myself. I don't use any surplus 6.5mm ammo, so maybe I'll get lucky! 
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Soft receiver? I remember seeing a warning about certain Mausers somewhere. Actually, looks like a headspace issue. that's what it looks like to me........all you guys shooting milsurp Mausers.....get a headspace gauge..a field gauge at the least, 25 bucks is cheap insurance for safe headspace. I bought 2 Turk Mausers a few years back...both of the swallowed a field gauge...changed bolts, and got good headspace........like I said cheap insurance. |
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I bought a couple of battlepacks of surplus 6.5X55 Swede from SAMCO. The cases have a slightly coroded look; is this ammo okay to shoot? Will I be killed too? http://i264.photobucket.com/albums/ii173/USPx4/65x55.jpg Holy crap! Is that what that stuff look's like? What year is it? Swedish Manf. 6.5X55 139 Gr FMJ 800 Rounds CALIBER: 6.5X55 BULLET TYPE: FMJ BULLET WEIGHT: 139 RELOADABLE: NO ROUNDS PER BOX: 20 BOXES PER CASE: 40 CASE WEIGHT: 51 LBS. OTHER FEATURES: SWEDISH MANUFACTURE, 1970'S PRODUCTION NON-CORROSIVE, BERDAN PRIMED, PACKED 20 ROUNDS PER BOX, 200 ROUNDS PER BATTLE PACK, 800 ROUNDS PER CASE (SOLD BY CASE) Nothing wrong with corroded Swedish surplus. Shoot away. |
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Quoted: Quoted: Quoted: Soft receiver? I remember seeing a warning about certain Mausers somewhere. Actually, looks like a headspace issue. that's what it looks like to me........all you guys shooting milsurp Mausers.....get a headspace gauge..a field gauge at the least, 25 bucks is cheap insurance for safe headspace. I bought 2 Turk Mausers a few years back...both of the swallowed a field gauge...changed bolts, and got good headspace........like I said cheap insurance. Smart, and very good advice. As for milsurp ammo, always do your homework. Theres nothing out there that you can't read up on. |
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Don't know the story, but it can happen with any ammo, I don't care who made it... From Federal/Winchester/etc brand new, to GA/BH reloads, to the rest of the stuff out there.
I saw commercially loaded ammo blow the shit out of a fairly high dollar AR a couple of months ago... Good reason not to use the magwell hold too. Hope the shooter was okay. |
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Quoted: need more info. It's a Swedish Mauser but the failures that I know of, were caused by under powered ammo. Mine seems uneffected  How would underpowered ammo cause a KB? Unless you mean an underpowered round that caused the bullet to get stuck in the barrel followed by another round shot behind it maybe? -K |
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need more info. It's a Swedish Mauser but the failures that I know of, were caused by under powered ammo. Mine seems uneffected
How would underpowered ammo cause a KB? Unless you mean an underpowered round that caused the bullet to get stuck in the barrel followed by another round shot behind it maybe? -K Detonation. (looking online now for a decent explanation for detonation) |
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Quoted: Quoted: Quoted: need more info. It's a Swedish Mauser but the failures that I know of, were caused by under powered ammo. Mine seems uneffected How would underpowered ammo cause a KB? Unless you mean an underpowered round that caused the bullet to get stuck in the barrel followed by another round shot behind it maybe? -K Detonation. (looking online now for a decent explanation for detonation) Biggest myth in firearms. First started by Bullseye in .38 Special rounds loaded with 148 grain wadcutters, NEVER been proven there, never been proven in any firearm. It takes a LOT MORE initiation for the deflagration to detonation transition of nitrocellulose than any primer has. Primers don't explode with any force necessary, if they did, the anvil would be vaporized and the primer pocket would be deformed. Detonation is a shock wave which moves through the explosive at a velocity higher than the speed of sound in the explosive. For nitrocellulose, that is over 14,000 FPS. |
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need more info. It's a Swedish Mauser but the failures that I know of, were caused by under powered ammo. Mine seems uneffected
How would underpowered ammo cause a KB? Unless you mean an underpowered round that caused the bullet to get stuck in the barrel followed by another round shot behind it maybe? -K Detonation. (looking online now for a decent explanation for detonation) Detonation happens when a load is reduced too much and the powder does not burn properly. If the load does not have enough powder in the case, it can burn very fast and cause a pressure spike just like overcharging. Edit: Keith knows what he's talking about in every thread I've read so maybe I'm wrong on this one. 
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need more info. It's a Swedish Mauser but the failures that I know of, were caused by under powered ammo. Mine seems uneffected
How would underpowered ammo cause a KB? Unless you mean an underpowered round that caused the bullet to get stuck in the barrel followed by another round shot behind it maybe? -K Detonation. (looking online now for a decent explanation for detonation) A quick search turned up this on detonation: http://www.charm.net/~kmarsh/burn.html |
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Detonation is NOT the proper term to use for excessive pressure signs. True detonation exhibits itself as a pressure wave of infinite slope. The effects of such an event are far different than the typical over-pressure event causing catastrophic failure, they have the appearance of brittle failure (little to no necking or reduction of area) yet the subsequent material analysis shows no reduction in ductility. Yes, some loads can exhibit strange pressure waves but modern measurement methods (HF piezo and even strain gauge systems) will show a finite time/pressure slope. Ergo, no detonation. |
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Would be interesting to find out the ammo he was using.
There is some bad Danish made 6.5x55 surplus floating around that has bad bullets that come apart and leave the bullet jacket in the bore which leads to disaster with next round fired. Don't shoot any Danish 6.5 surplus, Danish load uses older round nose bullet, headstamp will have HA. |
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Quoted: Would be interesting to find out the ammo he was using. There is some bad Danish made 6.5x55 surplus floating around that has bad bullets that come apart and leave the bullet jacket in the bore which leads to disaster with next round fired. Don't shoot any Danish 6.5 surplus, Danish load uses older round nose bullet, headstamp will have HA. Some older rounds can have the neck bonding to the jacket. This is one of the reasons for the asphalt sealant on US ammo. |
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I have to wonder if that is the result of a 7 mm Mauser round being chambered and fired. I have seen grab-bags of surplus 6.5 x 55 that had random other calibers mixed in. It's a good idea to measure the OAL and bullet diameter of every round, if there is any chance the ammo has been out of its original packaging.
The good news is the rifle's (inadequate) gas control system appears to have done its job. |