  The magnetic Ap or CP2 stars are natural atomic and magnetic laboratories and
ideal testing grounds for the evaluation of model atmospheres. CP2 stars
exhibiting photometric variability are traditionally referred to as alpha2
Canum Venaticorum (ACV) variables. Strictly periodic changes are observed in
the spectra and brightness of these stars, which allow the derivation of
rotational periods. Related to this group of objects are the He-weak (CP4) and
He-rich stars, some of which are also known to undergo brightness changes due
to rotational modulation. Increasing the sample size of known rotational
periods among CP2/4 stars is an important task, which will contribute to our
understanding of these objects and their evolution in time. We have compiled an
extensive target list of magnetic chemically peculiar (CP2/4) stars. In
addition to that, a systematic investigation of early-type (spectral types B/A)
variable stars of undetermined type in the International Variable Star Index of
the AAVSO (VSX) yielded additional ACV candidates, which were included in our
sample. We investigated our sample stars using publicly available observations
from the ASAS-3 archive. We were able to identify another 360 stars exhibiting
photometric variability in the accuracy limit of the ASAS-3 data, thereby
concluding our search for photometrically variable magnetic chemically peculiar
stars in the ASAS-3 archive. Summary data, folded light curves and, if
available, information from the literature are presented for all variable stars
of our sample, which is composed of 334 bona-fide ACV variables, 23 ACV
candidates and three eclipsing binary systems. In particular, we call attention
to HD 66051 (V414 Pup), which was identified as an eclipsing binary system
showing obvious rotational modulation of the light curve due to the presence of
an ACV variable in the system.
