We present new UBV I CCD observations of the old LMC globular cluster RETICULUM. These data allowed us to re-determine periods and light curves and to identify 4 double mode RR Lyrae stars. A comparison with the theoretical instability strip in the MV − logP plane shows good agreement between theory and observations when an apparent distance modulus of (m−M)=18.45±0.12 mag (i.e.(m−M)0=18.39±0.12 mag) is assumed.
