Bootstrap - Unable to center collapsed items with NavBar pulled right - html

Question

Question Background:
I have a standard Bootstrap collapsible NavBar that is pulled-right.
The Issue:
This is the NavBar on a non-mobile device:
This is pulled right to allow for this desired right-aligned posistion.
This is the NavBar collpased on a mobile device:
**Note that the item in the dropdown are aligned right, this make sense as its pulled right but I want them centered when on a mobile device, whilst keeping them aligned right on a non-mobile device
The Code:
I thought that setting text-center on the <ul> list would solve the issue but it does not:
<div class="navbar">
<nav class="navbar navbar-default navbarColour" role="navigation" id="nav">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<img src="~/Images/DC.png" class="dc">
</div>
<div class="middleNavPadding">
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<div class="pull-right text-center">
********Set text-center but this dosen't work********
<ul class="nav navbar-nav text-center">
<li>Services</li>
<li>Our Mission</li>
<li>Projects Gallery</li>
<li>Contact Us</li>
</ul>
</div>
</div>
</div>
</div>
</nav>
</div>
Any help with setting these <ul> list elements centered but keep the menu items pulled right on a non mobile device would be great.

Answer 1

Instead of using pull-right you should use navbar-right.Just put navbar-right to the unordered-list, remove the pull-right div, and the links will be centered on small devices.Working example.
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script>
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css" rel="stylesheet"/>
<div class="navbar">
<nav class="navbar navbar-default navbarColour" role="navigation" id="nav">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1"> <span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<img src="~/Images/DC.png" class="dc">
</div>
<div class="middleNavPadding">
<div class="collapse navbar-collapse" id="bs-example-navbar-collapse-1">
<ul class="nav navbar-nav navbar-right text-center">
<li>Services
</li>
<li>Our Mission
</li>
<li>Projects Gallery
</li>
<li>Contact Us
</li>
</ul>
</div>
</div>
</div>
</nav>
</div>