Cisco Firewall :: Pix 535 / Traverse From Inside To Outside Public IP

I'm trying to traverse from my inside private IP address (10.x.x.x) to my public IP address translation (172.16.x.x) in order to take advantage of the ACLs that are already applied on my outside interface.  For example:
 
Host 10.0.0.1, translated to PAT pool
Server 10.0.0.5, translated to 172.16.0.1
Inside-out access-list permits ip any any
Outside-in access-list permits tcp any 172.16.0.1/32 eq 80
 
From my inside host, I can get go 10.0.0.5:80.  I can get out to the internet.  External hosts can successfully get to 172.16.0.1:80 (address scheme is theoretical).  I can do everything except for connect to 172.16.0.1:80 (the translated public IP address) from my inside host address.  I did not setup this firewall originally, but I can't see a blatant command that makes this not work.  I don't see an ACL rule matched, so I'm assuming this is an issue with NAT or some sort of security policy. I'm running a Pix 535 /w 8.0.4.  The response I got from Cisco was "create static (inside,inside) translations for every host", but that's over 300 hosts.  I have a friend running the same software set and his works as expected without these static (inside, inside) NATs.