The Down Range Forum
Member Section => Down Range Cafe => Topic started by: huntnelk on February 25, 2011, 10:09:48 PM
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Not sure were to put this one so here is as good as anywhere. Got a Mossberg 500 for next to nothing. Took it apart to clean it and noticed that the pin which holds the trigger assembly in place has cracked out the receiver. Just enough where the pin is a little wobbly. I think that I will just slap a little weld on it, grind down, and re-drill the hole. I am planning on Dura-coating anyways. My question is will that little bit of welding compromise the strength of the receiver? Buy the way I was planning on using a wire feed welder. Any help would be great. Thanks
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you might want to check it with a magnet first, I'm pretty sure that Mossberg uses aluminum for their receivers.
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Oh the Remington guys are gonna love hearin this!
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I just saw something the other day about welding on guns. They said to heli-arc instead of mig welding. It's not supposed to hurt the steel.
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As much as I love Mossys, let me ask you to think about this. Focus on two things. "I got it for next to nothing". "I'm going to weld the receiver" Wherein 12 gauge rounds will go off near my face. Just sayin'.
FQ13 who would go back to gunbroker.FWIW.
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you might want to check it with a magnet first, I'm pretty sure that Mossberg uses aluminum for their receivers.
Just checked mine - aluminum.
on edit:
"I'm going to weld the receiver" Wherein 12 gauge rounds will go off near my face. Just sayin'.
Shotgun receivers don't receive that much pressure. They are comparitively low pressure rounds and that is handled by the chamber and barrel. The bolt locks to the barrel extension so it doesn't even handle that much.
If you got the stuff to weld aluminum go for it.
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I've been working with metal for years, but I'm not a welder. FQ is over reacting
If it is steel, you probably want to use one of those heat absorbing pastes as a heat sink to confine the heat to the area of the weld.
If it is aluminum you may be SOL. some alloys can't be reliably welded, especially castings, if you try, remember that aluminum is soft but dissipates heat fast, you need low temperature compared to steel, but it takes much more juice to generate it.
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Since it is the pin that holds the trigger group I wouldn't be concerned about the weld if done properly.
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Mossbergs, even the military ones, are aluminum receivers. That is because the receiver is a low stress part. The locking lug that the bolt mates with is steel.
Just like an AR15 where the reciever is aluminum because it doens't take much in the way of recoil forces. Use steel where you need to be strong, aluminum / alloy where you need to save weight. Just good engineering.
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I know a feller who had the same problem with an aluminum-framed Winchester 1300. It was a low-stress pinhole and was more for cosmetic reasons but also to tighten the pin fit somewhat. He bead blasted the area and used JB weld (the stuff works on engine blocks, etc) to make the repair.