Memorandum report ARBRL-MR-
02952. US army armament research and development command. Ballistic research laboratory. Aberdeen proving ground, Maryland. 1979, - 26 p.The 155mm XM201E2 is a dual zone propelling charge that has been in engineering development for the past several years. The XM201E2, as part of a new family of charges, was also intended as a replacement for the single zone M119 charge. The XM201E2 is a base-ignited charge in contrast to the combined base and center-core igniter in the M119 charge which eases loading, assembly, and packing of the XM201E2 charge. This makes the XM201E2 charge cheaper to produce than the M
119. In addition to cost, the XM201E2 exceeded all performance requirements except barrel life. The barrel life requirement was that the XM201E2 charge be no worse than when firing the M119 charge. The estimated barrel life for the 155mm M185 cannon was based on the data in Table I which came from the 155mm firing table. The XM201E2 charge produced a comparable velocity drop in only 1000 rounds as compared to 5000 for the M119.Introduction.
Compilation of data.
Analysis and discussion.
Conclusions.
