I should have shot a picture of the 410 Ferlib barrrels in their full over-bend, in this case on a 8 ft hydraulic Cincinnati pressbrake. But I was pretty puckered up myself. It's amazing the springback I got from these barrels. I used my friend's employee pressbrake operator and we used the machine's stop to limit the bend while the barrels were supported by wood blocks on the ends and a more pliable material in the middle where the upper ram applied force. We must have applied over-bending force at least 20 times, checking with a straight edge each time, to get the barrels straight.