Question: The Boomershoot is a long range precision rifle event held near Orofino, in which state, each year, in recent years, the event has also featured an explosive fireball and an Anvil firing to start the event?
Sentence (from ".350 Remington Magnum"): It was later offered in the Model 660 and Model 700 (one numerous various caliber configurations) rifles but was discontinued as a regular factory chambering in 1974 after a poor sales record.
Relevant evidence: No