Another solution in search of a problem.
What's it do that the 350 Legend doesn't?
Legend subs would be cool. The premise is to make a more lethal subsonic round by leveraging a ridiculous twist to help create wider wounds at subsonic impact velocities.
While I agree that twist has its place with regard to tissue damage, its really inconsequential without expansion at subsonic speeds, or at least much less so. Long bullets, "tumbling" was the initial desired effect of SS vels. The problem became the rate of twist required to stabilize those long (heavy) projectiles led to "pass through's" on targets where the bullet didnt strike bone. Now when you couple twist with velocity as the DOD ( army) discovered utilizing dogs ... you get the grande WOWSA!
Pasture pie sums it up nicely.
But I always appreciate effort....and salesmanship whichever the case may be.