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Thread: Titanium material in barrel
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5 April 2017, 04:38 #16
Lighter weight, better heat transfer.
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5 April 2017, 05:30 #17
They're taking a pencil barrel and using the procedure shown in this video to add Titanium to it. Once the Ti is added they turn it back down to a medium contour. It's a pretty cool what they're doing, but they could be going a lot lighter than a pencil profile with the steel. I'd cut it down to just a liner, maybe .100" over bore/chamber diameter.
There was another company making composite barrels similar to this, but they were using explosive welding to combine stellite liners with aluminum, titanium, or steel barrels.
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5 April 2017, 07:01 #18
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5 April 2017, 07:23 #19
Because Titanium makes really, really horrible barrels.
Here's a quote from McMillan when they tried it.
I fail to see any advantage in this projectile but can relate a story
that might give a little light on what could be expected.
A few years ago when the light rifle craze started I built a complete
rifle out of titanium. It was chambered for 308. I had to use a steel
bolt to bring the rifle up to 5lbs. We tested it for accuracy with 10
rounds which was OK and then I borescoped the barrel and found that most
of the rifling and some of the bore was missing for the first 8 inches.
We tried another 10 rounds and an other 8 inches shed the rifling.
Titanium is the worst metal I know of to gall. The barrel was galling
to the bullet jacket and was ripping it out with every round. You could
picture a titanium bullet galling to the steel rifling and doing the
same thing.
Gale McMillan
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5 April 2017, 07:28 #20
Steel isn't the ultimate barrel material, but the few metals that could outperform it are prohibitively expensive. No one, not even the military, wants to pay thousands of dollars for a single AR barrel.
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5 April 2017, 07:29 #21
This is not the gun of rambo.
There's no "Team" in F**K YOU!
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5 April 2017, 07:32 #22
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5 April 2017, 10:21 #23
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6 April 2017, 05:11 #24
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6 April 2017, 06:10 #25