If the .40 is considered "large", then the 7.62 round likely could be considered "medium". Anyone there using the .300 blackout round in their rifle, in the absence of other ballistics data, could have shot those who had "medium" caliber wounds.
In all reality, none of the subjective measurements by the coroner matter one whit without ballistics data.
209 posted on 08/31/2015 1:53:13 PM PDT by Smokin' Joe
(How often God must weep at humans' folly. Stand fast. God knows what He is doing.)