Thats a good basic video from an early day. I wear my speedloaders on strongside and remove my fingers once the knob turns. Let gravity do the rest. Good camera work on the finger placement by the weak hand in holding open the cylinder and working the ejector road downwards.
I showed @Etruett a picture of an advertisement today from Colt for their "new" speedloaders. The ad was from 1889. Nutton new under da sun...…….They looked like any speedloaders you have ever seen...1889......