Sorry for the late response! been away for a while.
Thanks for the comments on it. Its a family heirloom.
They call it the widow maker because several hunters were killed while loading it. This was the first semi-auto from Winchester, a competitor to the A-5 from browning. To load the gun the chamber is opened by grabbing the barrel and pulling it towards you, into the receiver. The loading port is then opened. The problem was people would put the butt stock on the ground and the barrel on their chest, leaning on the gun to open the port. An obvious and fatal mistake.
That's what I have since found out about the gun. Came from grandfather with 2 lengths as well.
I made the initial mistake of putting this in the rifle section. I've realized that. My mad.