Best practs: and blasting : Pit Quarry. Dec 07, 2015 Best practs: and blasting By Megan Smalley December 7, 2015 Larry Mirabelli, senior manager at Buckley Powder Co. , teamed with Bill Hissem, senior mining engineer at Construction , to deliver a presentation on drilling and blasting at the 2015 Quarry Academy hosted by Dyno Nobel and .