This Act is a substitute for Senate Bill No. 228. This Act achieves the intent of Senate Bill No. 228 by providing an exception to the general prohibition against semiautomatic pistols that have the ability to accept detachable ammunition magazines that attach at some location other than the pistol grip. This exception permits such a characteristic in the limited circumstance of using a rimfire pistol for competitive shooting or for practice shooting in preparation for competitive shooting. The characteristic is still prohibited outright for any centerfire pistols.