Yeah, that makes sense. I've got a 20 Ga. 1300, and I've learned it's just a skosh different than the 12 Ga. I was looking at one of those yellow takedown manuals you see at Gander Mountain (for instance) the other day, and when I was looking at the exploded diagram it showed a washer in the bolt assembly that I didn't recognize. Although the manual did not specify the gauge of 1300 used for reference, I came to the conclusion that the washer in question was only used in the 12 Ga. Actually, the firing pin looked different too.
So, I look around the Internet to see if can find a diagram for you to look at. Unfortunately the owners manual available on the Winchester site doesn't have a thing to say or a picture of thar washer, not even in the area where they describe the breech bolt takedown & reassembly... :roll:
Okay, so here's the only diagram I can find on the net, although I don't think it shows the washer that I saw in that yellow takedown manual (I don't think). I just can't tell whether this diagram is a 20 Ga. or a 12 Ga. I have a feeling it's a 20 Ga. though:
This image can be found here:
http://www.usracmfg.com/M1300_Drawing.htm
With a parts list here:
http://www.usracmfg.com/Model1300_price.htm
I wonder if anybody out there has a copy of the yellow Winchester 1300 takedown manual that could look in the back at the exploded diagram and explain exactly where that washer goes for certain?
So, I look around the Internet to see if can find a diagram for you to look at. Unfortunately the owners manual available on the Winchester site doesn't have a thing to say or a picture of thar washer, not even in the area where they describe the breech bolt takedown & reassembly... :roll:
Okay, so here's the only diagram I can find on the net, although I don't think it shows the washer that I saw in that yellow takedown manual (I don't think). I just can't tell whether this diagram is a 20 Ga. or a 12 Ga. I have a feeling it's a 20 Ga. though:

This image can be found here:
http://www.usracmfg.com/M1300_Drawing.htm
With a parts list here:
http://www.usracmfg.com/Model1300_price.htm
I wonder if anybody out there has a copy of the yellow Winchester 1300 takedown manual that could look in the back at the exploded diagram and explain exactly where that washer goes for certain?