That`s correct, because the bullet is just beginning to expand as it exits a standing jug. Lay the jug on it`s side and shoot the base to see the effect. The bullet does as advertized, IME, penetrate 3-5 inches, and then expand.
Shooting a Yote through the shoulders, 4-6 inches wide may not give full expansion, but shot head on at 365 yrds, a 140grn VLD Hunting bullet will darn near take the back end off, just my experience. ( 7x57, 2850 fps.)