You do seem to be the go-to expert on the Model 60, and I suspect you may very well be correct. But here's a picture of mine, it doesn't look very worn to me, looks nice and tight. What do you think?
I'm not feeling this rifle was actually fired much, just abused. Besides the bulges in the barrel (which I've replaced, THAT sucked), the rifling looked great too.
I'm not seeing much wear anywhere. Looks like it was bought, spent maybe around 30 years bouncing around behind the seat or in the tool box of a truck, then dropped off at a pawn shop when it quit working (likely for a song, which is about what I paid for it).
Your other videos did help me out quite a bit. Whoever took this rifle apart before me apparently knew far less about guns than they thought. They forgot to install, or lost, what I call the "Jesus" clips on one side of the lower. I started calling them Jesus clips when I was in the Marines and had to work on my M249, because the first words out of your mouth when they go flying is "oh sweet Jesus please help me". Other folks know them as "C" clips I believe. Yes, I did my own maintenance on my SAW, my armorer highly approved, it saved him the trouble and I did a good job of it. Even made new springs from safety pins in my fighting hole in Afghanistan.
Old joke I heard once.
"Lock a Marine Grunt in a padded cell with a ball bearing and he'll still break it."
"Break the ball bearing?"
"Yep, AND the padded cell."
Anyway... last shade tree smith left off the c-clips. And my lower exploded all over my shop. I just spent the last hour or so on my hands and knees with a magnet and strong headlamp gathering my parts. Used one of your other videos to make sure I had them all and then to reassemble it.
Oh, I adjusted the ejector spring while I was at it, and made sure I put the lower in with the bolt locked to the rear and mag insert/follower removed!
I want to thank you for the work you do and for the videos you've made. Please get back to me on that feed ramp, whether it looks good to you or not. After I reassembled the lower, I still couldn't find any play or looseness between the halves.
Also, are your videos compiled anywhere besides youtube? Such as a list of links to all them somewhere on this forum? I think that'd be a great idea, as I don't have, nor want, a youtube account. But, if that's the best way to go to follow all your videos, you may singlehandedly change my mind on that! Your knowledge has so far been a boon to me with this old beater!