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Ammo and Reloading Factory Ammunition, Reloading, Components, Load Data and more.

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  #1  
Old 12-30-2012, 8:58 PM
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cruddymutt cruddymutt is offline
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Default Blew out a primer on factory load. Why?

Took my 1945 Swedish AG42B Ljungman out today. I am still waiting for my Grafs order to finally start reloading for this rifle so all I had was some Rem Cor-Lokt and some PRVI. Plus I need the brass.
Rifle ran fine for 15 or so rounds (All Rem). Loaded up a fresh mag and the first round, a Rem, only pulled out of the chamber maybe half way and the primer was gone. That was my last Rem and the rest in the mag were all PRVI. I cleared the case and the rifle purred away like before for another 20 or so rounds until I put it away.
Bad round? At first I thought the ejector slipped of the rim causing pressure in the case blowing the spent primer out of the primer pocket but the case rim looks great.
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Old 12-31-2012, 1:06 PM
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I'm more inclined to blame the Remington ammo due to a similar circumstance. At the Sheriff's Dept sniper deck with Knights Armanent M110 sniper rifle in 7.62 firing factory Remington 168gr HPBT Match. 3rd round blew the primer. Figure it was a fluke round with a soft or oversized primer pocket, so kept firing. 5th round was a full case head separation approximately 1/2" from the head. I was advised by range staff that this is situation is not an isolated incident with Remington ammo
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Old 12-31-2012, 1:25 PM
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Going through my brass I found another one. Also a Remington.
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Old 12-31-2012, 2:33 PM
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Could be an issue with the pressure curve of the powder, since the problems we both have are with gas guns. I've fired the Remington Match in one of our bolt sniper rifles and it fired ok.
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Old 12-31-2012, 6:15 PM
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I would check the headspace on the rifle and check the ammo in a drop in case gauge just to be sure.
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  #6  
Old 01-03-2013, 11:13 PM
knucklehead0202 knucklehead0202 is offline
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ljungmanns are a direct-impingement gas rifle and are touchy about ammo, especially when it comes to fast or slow-burning powders. some things will run fine in them, some things can be dangerous. i don't have extensive experience with these rifles; i owned a hakim, which is similar but i don't believe the ljungmann has an adjustable gas system, to it's detriment. you really have to either find a factory load that works, or experiment with handloads until you get it right. start low until you find what cycles it reliably and stick to it. good luck. remember, even though it's funky, it's still a better design than an AR....
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Old 01-03-2013, 11:14 PM
knucklehead0202 knucklehead0202 is offline
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ljungmanns are a direct-impingement gas rifle and are touchy about ammo, especially when it comes to fast or slow-burning powders. some things will run fine in them, some things can be dangerous. i don't have extensive experience with these rifles; i owned a hakim, which is similar but i don't believe the ljungmann has an adjustable gas system, to it's detriment. you really have to either find a factory load that works, or experiment with handloads until you get it right. start low until you find what cycles it reliably and stick to it. good luck. remember, even though it's funky, it's still a better design than an AR....
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Old 01-05-2013, 9:02 PM
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I blew primers on some M193 not to long ago. It was probably just a bad batch or something.
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