This is actually a great shot of a 155mm breech - to the point that you can see the "swiss groove" in the powder chamber. Not to mention the interrupted-thread of the breech, the details of the DeBange Obturator, etc. That would be the cut-out portion in the powder chamber that helps keep the powder charge in the chamber when the gun is being loaded. The round is rammed either mechanically or by hand using a rammer staff, so that it is pushed through the forcing cone far enough that the rotating band engages the rifling. That gizmo just to the left...
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Posted
Mar 28 2011, 06:24 AM
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Argghhh! The Home Of Two Of Jonah's Military Guys..