I have my doubts that the Sig Sauer 6.8x51 Hybrid cartridge is the Armor Obliterator that people on the internet make it out to be (at least without Tungsten Carbide) and I am making this post to detail these reasons and offer a chance at critique of my thought process.
This post is going to be a very long sperg post about things I am entirely unqualified to give an opinion on and will contain lots of math, speculation and sperging about things I freely admit I do not fully understand.
Alright Point #1. In the linked below video Garand Thumb chronographs two rounds of CIVILLIAN power Sig 6.8x51 ammunition using a very expensive scientific chronograph and obtains the following velocities, 2823fps and 2822fps respectively out of a 13in barrel with a suppressor. Shots are taken starting at 6:43
Point #2.
The below linked video shows an RMA 1189 Plate withstand 3 rounds of .300 Win Mag loaded with M2AP Projectiles and one round of M80A1 with one round of .300 Win Mag M2AP Penetrating. All shots were taken at "45-46 feet"
.300 Win Mag M2AP Muzzle velocities.
-3276fps
-3236fps
-3205fps
-3220fps
M80A1 muzzle velocity.
-3030fps
Note that the LAST round of .300 Win Mag M2AP was the one to penetrate. The stated Rockwell Hardness of the M80A1 was "48-49" (Note that this measurement was probably taken with non laboratory grade equipment, how much that matters I cannot speak to). Any Steel with a Rockwell Hardness of over 50 is considered "Hard". An image that will be inserted at the bottom of this post says that M2AP has a Vickers Hardness of 785, a Vickers Hardness of 772 is equivalent to a Rockwell Hardness of 63 according to this link.
Point #3. Assumptions
The Military versions of the Sig 6.8 are loaded to a higher pressure than the Civilian version as evidenced by the Civilian Version's lack of a Hybrid case design. Assuming that the Military version achieves 20% higher velocity than the high of 2823fps in the GT video that would give a muzzle velocity of 3387fps out of a 13in barrel, 111fps higher that the highest recorded velocity of the .300 Win Mag loaded with M2AP listed above. To my knowledge there is no publicly available data on the finalized velocity of the Military version of the Sig 6.8 and I have heard numbers ranging from 3000fps to 3500fps, I have also heard that the power was substantially reduced due to recoil concerns.
Point #4. Theoretical Counterpoints
-The Sig 6.8 projectile was designed by the US Government to do what the US Government wanted it to do
-Nobody knows if the Sig 6.8 Can Pen Level IV at all much less at any considerable distance
-The Sig 6.8 projectile was designed with modern technology and manufactured with modern manufacturing methods
-I am entirely unqualified to speak about any of this
#5. Counterpoints to those counterpoints
-This is the US Government we are talking about here, The US Government designed the projectile
-The projectile was designed by the same people who tried for more than a decade to build an Iron Man Suit and wanted to give every infantryman a computerized smart grenade launcher with a rifle strapped to it.
-The US Military allegedly used Steel softer than that found in bullets made during WW2 for their Enhanced Performance Round.
-Big Army does not always get what it wants.
Thoughts? Opinions? Am I retarded? Am I smarter than the American Government?
