Fackler to objašnjava činjenicom da lubanja može biti blago elastična i rupe od metaka mogu bit malo manje ili veće od stvarnog kalibra zrna.

That is extremely round. " reče Fackler dodajući kako je impresioniran sa okruglošću te rane.

" Takve rane su vrlo neuobičajene, osim ako nisu uzrokovane vatrenim oružjem " reče Fackler.

Fackler zaključuje sa riječima " Oni nisu napravili autposiju.

" Fackler je isto tako bio zaprepašten s opisom iz Gormleyevog izviješća, koje navodi da je " rupa promjera približno 0,5 inča. "

Although Dr. Martin Fackler later showed that projectile fragmentation was the key to producing significant wounding effect, this was unknown to the Soviets when they began development of the new round.This was similarly unknown to the non-Soviet alarmists who feared that they had achieved wounding parity with the 5.56 x 45 mm NATO round

In his terminal ballistics study using live pigs and ballistic gelatin, Fackler was able to demonstrate that the 5.45 mm round does not fragment or cause unusual amounts of tissue disruption.