  Single-cell prototype drift chambers were built at TRIUMF and tested with a
$\sim\unit[210]{MeV/c}$ beam of positrons, muons, and pions. A cluster-counting
technique is implemented which improves the ability to distinguish muons and
pions when combined with a traditional truncated-mean charge measurement.
Several cluster-counting algorithms and equipment variations are tested, all
showing significant improvement when combined with the traditional method. The
results show that cluster counting is a feasible option for any particle
physics experiment using drift chambers for particle identification. The
technique does not require electronics with an overly high sampling rate.
Optimal results are found with a signal smoothing time of $\sim\unit[5]{ns}$
corresponding to a $\sim\unit[100]{MHz}$ Nyquist frequency.
