I use simple hanging captions for my tableheadings and figures. However, they are not aligned correctly. I know I can manipulate the indent manually, but I want to understand why they are placed wrong. Its not easy to see, but the second line of the caption seems to be aligned to the empty space after :, not to the first letter of the first line.
Here is my MWE:
\documentclass[captions=tableheading,14pt]{scrreprt}
\usepackage[ngerman]{babel}
\usepackage[utf8]{inputenc}
\usepackage{tabularx}
\usepackage{subfig}
\captionsetup{format=hang}
\setlength{\parindent}{0pt}
\begin{document}
\begin{table}[tbh]
\caption{\label{tab:gzf_netzbelastung_ohne} Parameter für die
Bestimmung der der Netzbelastung unter Ausschluss der Gewerbebetriebe.}
\begin{tabularx}{\textwidth}{|l|X|}
\firsthline
Nicht berücksichtigte Haushalte & 10,29 \\\hline
Anzahl Haushalte - $n$ & 30\\\hline
$P_\mathrm{S}$ & \\
\lasthline
\end{tabularx}
\end{table}
Um den Einfluss der Gewerbebetriebe beurteilen zu können, sind die bei
Berücksichtigung dieser Haushalte ebenfalls bestimmt worden. Die zugehörigen
Parameter finden sich in Tabelle \ref{tab:gzf_netzbelastung_ohne}.
\end{document}

I load subfig because I need it in my original document - this package also loads the caption package. However, the same is problem arises without those packages.
I also tried leaving the redefinition of parindent, but this also does not change anything.

\label{...}from inside\captionand put it under\caption, then remove the white space you typed before\label. – Pier Paolo Jan 06 '15 at 17:37\begin{table}? – Paul Paulsen Jan 06 '15 at 17:39\labelis, I found an answer: http://tex.stackexchange.com/q/32325/41356 – Paul Paulsen Jan 07 '15 at 12:27