Why not steel shot in Belgium Browning Barrel?

The manufacturer's recommendation is to not use steel shot in a Belgium Browning Barrel because the steel shot is harder than the barrel and can cause damage to the barrel. The steel shot can also cause the barrel to bulge or even burst, which could result in serious injury or death.

In addition, using steel shot in a Belgium Browning Barrel can void the warranty on the barrel. If you are considering using steel shot in your Belgium Browning Barrel, it is important to consult with the manufacturer first to make sure that it is safe to do so.