I had never really thought about this until a member on another forum posted this thought:
That bullet with "Those flutes will be like a drill bit and blender when the bullet hits ."
I posted back:
Never thought of it that way but I think you 'nailed it'
Not being the best gun nut in the world - I wonder what the RPM of that bullet might be at 100 yards?
He answered back
muznut" source="/post/174571/thread" timestamp="1426165282"
Dunno how fast that bullet will be going at a 100yrds but your speed of 1950 at the muzzle with a 1:28 twist it will be spinning at 50142.9 RPM's
At 50,000 + RPM's (at the muzzle) I can not even imagine the fluids the bullet could be spinning off and directing up and out of the flutes.