05/13/2026
Most pre-blast meetings cover the same ground: powder factor, sequence,
exclusion zone, timing.
What they rarely cover is the question that decides more shots than any
of those:
“Did we measure that — or did we assume it?”
Measure or assume on burden at the face.
Measure or assume on burden and spacing.
Measure or assume on hole depth.
Measure or assume on stemming column.
Measure or assume on water in the hole.
Every shot that disappoints came from at least one assumed number that
should have been a measured one.
The crews getting consistent fragmentation aren’t the ones
with the best powder. They’re the ones who actually measured the shot to verify that it matched the design.
Walk it. Measure it. Load it. Then fire it.
Shop Measuring Accessories: https://www.shop.mtigroup.us/collections/measuring