The left bullet has a dual diameter shank.
The right bullet does not.
The Outlaw .308 bullet is an open tip rebated boattail design. It has a pure lead core that is segmented in the nose. The entire jacket length is serrated to allow for maximum expansion. The shank has a dual diameter to allow magazine length bullet seating.
Upon impact the nose of the bullet explodes distributing four mini cores into a radial pattern around the main core (shank). The main core expands to .45 caliber and tumbles through the target. Use on white tail deer has shown complete penetration. The 225gr .308 will stabilize in a 1-10 twist barrel. The 210gr .308 will stabilize in a 1-11.25 twist barrel. The 240gr .308 will stabilize in a 1-8 twist barrel.
The new 220 grain lead tip spitzer feeds from an unmodified AR-15 with a 1-8 twist.
The 220 grain lead tip spitzer is the recommended bullet for the new 300 BLACKOUT.
The far left bullet is a Hornady 208 a-max. It started to tumble at 9" in wet newsprint. The other bullets are 220 lead tip spitzers shot at various subsonic speeds. These bullets start to expand immediately and penetrated 14" of wet newsprint.
The fragmenting design of these bullets reduce the chance of ricochet.