Interesting! The video shows the gate being replaced AFTER all the other guts are replaced. I was trying to do it with the guts removed. J.B. Wood's
Firearms Assembly/Disassembly says assembly is mostly just the reverse order of disassembly, and shows the loading gate removal after almost everything else except the carrier spring and cartridge guides (step 21 of 25). I'll have to go downstairs now and reassemble in the order in the video. Maybe the loading block and trigger assembly etc. will hold the end in place better than my finger (actually the wooden 'finger' I made was supposed to rest in the loading block grooves).
In another, completely unrelated, vein, between the time I first read your reply NebrHogger, and now, a courier arrived with a package from Titan Reloading...which included a #17 shell holder! NOW I can finally get on with priming my 8mm Lebel cases so I can fireform them to .41 Swiss! Got 19 of 20 .348's done recently and reloaded them ready to go, but the range was closed yesterday. I'll have to wait til next Sunday the try them.
Edit: (an hour later) Yeah. That didn't work. I'm beginning to think I may not really need a Win 94 in .30 WCF