It’s been almost seven months since an explosion rocked the Nosler Bullet Plant in Bend and investigators are still trying to determine what caused the blast. Company spokesman Zack Waterman says it's still officially a mystery, but he would like to see it solved. “I hope so, I hope so; but as we know it now, we don't know anything as far as the ignition source.” Waterman says the Company is in the last stages of reconstruction. It could be finished as early as next month, but a lot depends on the weather. The Company has taken the opportunity to increase operational efficiencies and improve safety. That includes more concrete and changes to the electrical system to reduce the chances a spark could set off another explosion. 106 employees are now doing the work of 130, which is how many workers were employed as Nosler before the explosion.