Do country-specific nameserver TLDs affect geo-targetting?

[kidder]

We have a VPS located in the US (Chicago) that we set up a few years ago with ns1.oursite.com.au as the name servers. We do run a couple of US .com sites on this configuration and wanted to get some feedback on this as a potential issue with our Google search results. In webmaster tools the domains are set to US, are we sending mixed signals by running this setup?

[tedster]

I've never run into this situation, but my instincts say the answer is no. If Webmaster Tools has allowed US targeting, then the nameserver should not be an influence.

[HuskyPup]

but my instincts say the answer is no.

My experience would suggest not as well.

My name servers are .co.uk and I don't seem to have any problems with my country-specific sites ranking well in their respective Googles such as .co.in, .cn and, of course, .com.

I did used to have a server in the US for some sites and those sites were very rarely seen in results outside of the US.