 Complete the following phrase:  From the start of the modern biathlon in 1958 until 1965, international competitions were held exclusively using high power centerfire cartridges such as the .30-06 and 7.62 NATO. Fullbore biathlon was part of the Winter Olympic Games in 1960, 1964, 1968, 1972 and 1976. Fullbore World Championships were held from Saalfelden 1958 to Vingrom 1977, with 