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Performance characteristics of a high repetition rate rare-gas halide minilaser are reported. At 1 kHz pulse repetition frequency over 1 mJ per pulse at KrF and 0.5 mJ per pulse at XeCl wavelengths are obtained. Net small-signal gains greater than 0.3 cm-1are observed in XeCl. The wall plug efficiency is measured to be as high as 0.25 percent.