Can anyone tell me if there is any physical/functional difference between the HKS 10 and 10-A speedloaders? My gut tells me that the 10 was the older model before they went to the -A designation but I can't seem to find any definitive answer for this.
The reason I ask is because I have some of them and a friend wants a couple for his EAA Windicator which calls for a 10-A. I'm 99% sure they'll work just fine but don't want to waste the postage sending them to him if they won't.

IIRC, the 10A is a little stiffer to eliminate cartridge "jiggle." The hole pattern is the same.

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Thank you!

That’s the way I understand it. However, they also said the 10 could potentially be quicker because of the looseness.

These were preferred by me when toting a K-frame working security. I could use the wiggle=jiggle to easily load my BUG Colt Agent W/ factory hammer shroud.

A little bit if you used a round nose bullet, has been my experience.