Challenger, Huntsman & Targetsman .22
Year	Serial Number
1950	1-C
1951	18000-C
1952	39000-C
1953	63650-C
1954	72850-C
1955	75400-C - 77143-C
1955	90001-C
1956	96100-C
1957	112500-C
1958	124600-C
1959	129300-C
1960	141150-C
1961	146100-C
1962	151550-C
1963	154600-C
1964	158800-C
1965	162400-C
1966	168200-C
1967	175200-C
1968	182250-C
1969	193100-C - 194040-C
1969	001001-S
1970	020101-S
1971	024051-S
1972	029901-S
1973	039901-S
1974	050501-S
1975	067801-S
1976	S100001S - S101336S
1976	3000001S
1977	312400S - 317736S