Design and performance characteristics of discharge repetitively pulsed XeCl laser with active volume of 4x7x100 cm3 are described in the paper. The laser device includes a cylindric discharge chamber with a fan, heat exchanger, and a source of soft X–rays. Active medium is pumped by a thyratron magnetic generator with stored energy of 500 J. Output energy of 10 J in a 50 ns pulse and output power density of 10 MW/cm2 are obtained in a gas mixture of Ne:Xe:HCl = 1560:0:1 at the total pressure of 4 atm. Preliminary examination of the laser performance at 20 Hz has been carried out.