I'm no ballistics expert but it looks like a bullet entry, if the guy was wearing the helmet at the time it would have been through the temple area!..
It's a wasted trip baby. Nobody said nothing about locking horns with no Tigers.
I'm Spartacus, not really i'm Paul!...
I got to admit with the new pics I think it looks like a bullet entry as well, though we can never know when or if some was wearing it at the time. Still nice lid indeed.