I use essentially the same method you describe. I typically don't chamfer and de-burr the neck, and I don't have a collet die. I just put a small flat on the mouth by pressing the case mouth against the bench top. That gives the tension needed to hold the bullet. Repeat a few times to verify and you're done. Cheap and effective.
For repeaters, I also make sure the length is suitable for magazine loading and feeding. I use a case with sized neck for that so the bullet stays at the test length.
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