Really hard to tell for sure, but assuming it orients itself aerodynamically, exposing a 75x10mm surface area to the wind, with a drag coefficient of 1.0 (slightly less than a cube) and a mass of 180g, then omnicalc says it'd be moving at 225 km/h (62.5 m/s), giving a kinetic energy of 352 Joule.
If I had to guess - based on comparisons to energies cited for handgun bullets, less-lethal ammo, and punches - this could be fatal, but (given the relatively large size of the projectile) wouldn't be certain death.
There's also a chance of significantly more drag due to tumbling, which would likely put it into "most likely survivable but very, very painful" territory.
If I had to guess - based on comparisons to energies cited for handgun bullets, less-lethal ammo, and punches - this could be fatal, but (given the relatively large size of the projectile) wouldn't be certain death.
There's also a chance of significantly more drag due to tumbling, which would likely put it into "most likely survivable but very, very painful" territory.