D. Wilson Manufacturing (AKA the AR Bolt Guru)

IronMonster · Mar 17, 2015

Just as an interesting aside, because I am a metal nerd

Weights per cubic foot

Aluminum 160 lbs
Gold. 1205 lbs
Iron. 450 lbs
Lead. 710 lbs
Inconel. 550 lbs
Mild steel. 490 lbs
Titanium. 221 lbs

And the grand daddy

Platinum. 1413 lbs per cubic foot, almost three times that of iron

Another side note. We think of concrete as heavy and aluminum as light, yet a cubic foot of concrete actually weighs a little less. Around 150 lbs per cubic foot.

Ok, enough nerd for today.

BoonDocks36 · Mar 17, 2015

That...Depends on what kind of ~Concrete~ You making Reference to!!!!

~~~~~ Concrete Nerd!!!!

philip

I have worked Gunnite, in "Zero Degree" weather, in the SNOW! That is what happens when your company is a Sub Contractor on a big scheduled project!!!! We added enough Calcium, that we were Walking on the Bond Beam, in a Half hour!!!! We sprayed, first shaped right behind the hose, and Second (final) Shaped just behind the first shaper!

philip... Oh, that was in Federal Way, up in Washington... Also did an Olympic Sized, in Marysville: the batch plant was a new one for us, ordered the 9 Yarders to Start coming.... The first one dropped 2-3 Inch Rocks into our machine... I yelled to the hose man, shut the pump off, he came up...
Inspected what is SUPPOSED to be Only 3/4 Minus at the largest, told the driver the order was NOT GUNNITE, and to leave... Driver had never seen a gunnite hose man MAD.... the issue for him is simply LIFE or DEATH, at the end of the hose.... Have a good day, one nerd to another!!!!

Flopsweat · Mar 17, 2015

BoonDocks36 said:
That...Depends on what kind of ~Concrete~ You making Reference to!!!!

~~~~~ Concrete Nerd!!!!

philip

I have worked Gunnite, in "Zero Degree" weather, in the SNOW! That is what happens when your company is a Sub Contractor on a big scheduled project!!!! We added enough Calcium, that we were Walking on the Bond Beam, in a Half hour!!!! We sprayed, first shaped right behind the hose, and Second (final) Shaped just behind the first shaper!

philip... Oh, that was in Federal Way, up in Washington... Also did an Olympic Sized, in Marysville: the batch plant was a new one for us, ordered the 9 Yarders to Start coming.... The first one dropped 2-3 Inch Rocks into our machine... I yelled to the hose man, shut the pump off, he came up...
Inspected what is SUPPOSED to be Only 3/4 Minus at the largest, told the driver the order was NOT GUNNITE, and to leave... Driver had never seen a gunnite hose man MAD.... the issue for him is simply LIFE or DEATH, at the end of the hose.... Have a good day, one nerd to another!!!!

OK, I'm pretty sure I understood almost half of that...

unclemoak · Mar 18, 2015

IronMonster said:
Inconel is insanity in metal. It's like 20% more dense than steel and has a melting point that is something like 30% higher. It is also insanely expensive. They build nuke reactors bits and jet engine parts out of the stuff. Anything that has to be incredibly strong at high temps.

Don't forget muzzle breaks as well

IronMonster · Mar 18, 2015

A bit of overkill for a muzzle brake dont you think? So if its a brake where is it venting?

unclemoak · Mar 18, 2015

Not entirely. It's designed to be used with the NT4 suppressor to act as a blast baffle, so it takes the brunt of the blast and not the guts of your can.

BoonDocks36 · Mar 19, 2015

Flopsweat said:
OK, I'm pretty sure I understood almost half of that...

Oh no you don't, you are Not going to get me to sidetrack this thread, and teach about Gunnite Pumping!!!

You gotta bait the Hook much better for me to Bite it!!!!

philip

oli700 · Mar 23, 2015

unclemoak said:
Don't forget muzzle breaks as well

View attachment 220092

based off the KAC ?.......

unclemoak · Mar 23, 2015

oli700 said:
based off the KAC ?.......

That's actually one of the first factory KAC TTB's that was available to the public that sits on my personal SBR. I still can't believe I paid $450 for that thing.