What metal/alloy could you make a barrel out of that would give the barrels for "barrel burning" cartridges the same longevity as steel barrels have with slower cartridges?
I'd like an AR in 26 Nosler with the same barrel life as a an AR chambered in .308.
pic related
stellite. it's a thing, just really expensive.
nitrocarburizing does a lot for steel.
Tungsten carbide. Not the cutting grade shit, but the ridiculously hard shit they use in drill teeth.
Good luck rifling it, though.
Tannerite.
Boron carbide
just chrome it, desu
>>30123483
You are aware that the cutting shit is exactly the same as the cutting shit you're referring to,right?
>>30125588
There's shitloads of different grades of carbide.
>>30123483
I've thought about this, and the only way I could see it being done is somehow extruding the actual rifled bits as one (relatively thin) solid piece and then sintering it into a regular steel barrel sleeve to give it structural strength.
Chambers would be done the same way, using solid extruded inserts rather than reaming them out.
>>30125630
Or maybe the barrel would be a regular 4140 tube bored out to its groove diameter, and then the carbide rifling lands are sintered inside. After all, it's not the grooves that wear, it's the lands.
The chamber and first few inches of rifling would be one solid piece of extruded carbide enclosed in that same barrel sleeve, because that's where the primary source of wear in those big calibers occurs.
>>30123419
This is the answer I was looking for. Thanks!
>>30125630
>extruding tungsten carbide
uw0tm8? No. You use selective laser sintering.
>>30125677
It will expand unevenly, which will shatter the tungsten carbide.
