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Posted: 10/26/2014 9:02:09 AM EDT
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Originally Posted By Eric802:
I had no idea there was a .30 Carbine AP round. That's a new one to me. Wonder how effective it was, as there seems to be just a little, not-to-pointy bit of tungsten there. That .30 carbine is just a hardened steel core. Pretty rare, think I paid $20 for it. There is 3 different steel cores for the .30 carbine. Its hard enough just to find one! The 7.62 - T/09 and the 5.56 from FN/68 are also just hardened steel core. The tungsten cored penetrators are considered "High Velocity Armor Piercing" since the increased velocity from the tungsten being lighter in weight than steel. Its about 3 times the strength over hardened steel, but half as dense as depleted uranium. And just as toxic in powder (dust )form. The act of combining modern day ceramics and very hard metals, or cerametal, is used to make the tungsten penetrators. That's where tungsten carbide powder is mixed with a binder and pressed into a "green" shape where it can be than machined into its final shape. Then its baked in a kiln until completely hardened. |
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Originally Posted By Eric802: I had no idea there was a .30 Carbine AP round. That's a new one to me. Wonder how effective it was, as there seems to be just a little, not-to-pointy bit of tungsten there. |
The king of the vultures would be no less bent upon preying upon the flock than any of the minor harpies, it was indispensable to be in a perpetual attitude of defence against his beak and claws
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Originally Posted By TaylorWSO:
same thing i was thinking-I would expect a larger (longer) penetrator Originally Posted By TaylorWSO:
Originally Posted By Eric802:
I had no idea there was a .30 Carbine AP round. That's a new one to me. Wonder how effective it was, as there seems to be just a little, not-to-pointy bit of tungsten there. Your looking at it backwards. The 30Carb is a steel core. The dull spot up top is a little bit of lead and the shiny stuff is steel. |
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The 338 Lapua round came from a cartridge show that happens every year called Saint Louis International Cartridge Show (SLICS). Next one on April 1-3, hope to see you there!
A collector from Denmark brought over a box of 15(?) and was selling them at $25 each. He sold out quickly. I stupidly only picked up a single round, should have bought them all. Usually at the SLICS show, the problem is too many cartridges and not enough money. Other than those, I don't think there is that many in the US. What I did notice is that the brass on the 338 and 300 win mag was very thin and brittle. The neck on the 300 actually cracked while cutting but hid that in the picture. Its not like there is a lot of 300 cases floating around from Thun Switz (T) that I could have replaced it with. |
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