I don't think a small 'scallop' at the rear of the loading gate on the frame qualifies as an 'improvement' - more like a simple cosmetic 'afterthought'.has placed a small scallop at the rear of the loading gate to help with loading through the loading gate. One of the several improvements from Henry..
Rounds are loaded through the front of the loading gate - not the rear - so it really doesn't do anything.
I would have preferred Henry had simply made the load gate opening a smooth, concentric 'oval' as opposed to the shape they did but I am sure it works fine as it is.