I thought I would share a project I have been working on for the last few months. This is an all new 300blk monolithic bullet I have been testing. It is not released and is still in its development stages for many applications from military/LE to hunting.
I know many find ballistic gel test interesting and this 125 grain bullet demonstrates the new technology in bullets. It's a unusual test because it is shot 78 yards into the ballistic gel to represent real world performance.

300 Blackout Ballistic test of 125 grain Monolithic bullet from NPA shot from 78 yards. - YouTube

Great penetration. What was the recovered diameter of the projectile?

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Captain

Nice constant diameter of .634.
Velocity is 2100fps with a 16 barrel upper. I am getting similar results with a 10" suppressed upper as well. This bullet is just amazing. There will be a 5.56 and 308 version of this bullet as well. The Ammo just passed it extensive "full auto" reliability testing with flying colors. I am going to use this ammo in multiple platforms for multiple applications like hunting and personal protection. It is now my go to caliber and bullet.