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Rifles, Reloading, Optics, Equipment
Reloading
Couple questions on bullet weld
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<blockquote data-quote="MagnumManiac" data-source="post: 2419710" data-attributes="member: 10755"><p>Bullet weld is real because it is a chemical reaction between two differing metals.</p><p>To stop it entirely you need a barrier between the two metals.</p><p>After exhausting many theories that were wrong, I settled on using very fine powdered graphite which I apply with a calibre specific nylon brush prior to charging the case and seating bullets.</p><p>In around 20 years now, I have not had a bullet weld issue. I used to load 200 rounds and store them at the property I would be shooting on. Prior to lubing the necks, I would get bullet weld and some rounds, not all of them, would lock the bolt up upon firing. The weld is a lot stronger than a crimp can be.</p><p>On some rounds after firing, there would be green corrosion on the insides of the neck, which I had assumed was from moisture, but it isn't, it's the chemical reaction causing it. The military have known about this since forever and use a sealant which acts likes a barrier between bullet and case.</p><p>Fine graphite powder or mica seem to work the best, in favour of graphites slipperiness over mica, that's what I use and recommend. It has to be very fine powder, not like the stuff used for locks.</p><p></p><p>Cheers.</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 2419710, member: 10755"] Bullet weld is real because it is a chemical reaction between two differing metals. To stop it entirely you need a barrier between the two metals. After exhausting many theories that were wrong, I settled on using very fine powdered graphite which I apply with a calibre specific nylon brush prior to charging the case and seating bullets. In around 20 years now, I have not had a bullet weld issue. I used to load 200 rounds and store them at the property I would be shooting on. Prior to lubing the necks, I would get bullet weld and some rounds, not all of them, would lock the bolt up upon firing. The weld is a lot stronger than a crimp can be. On some rounds after firing, there would be green corrosion on the insides of the neck, which I had assumed was from moisture, but it isn’t, it’s the chemical reaction causing it. The military have known about this since forever and use a sealant which acts likes a barrier between bullet and case. Fine graphite powder or mica seem to work the best, in favour of graphites slipperiness over mica, that’s what I use and recommend. It has to be very fine powder, not like the stuff used for locks. Cheers. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Couple questions on bullet weld
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