Has anyone used this powder on .410 loads?

I dug through all my Winchester data books back to the 1970's.
they show H-110 back then in the 410.

680 was used in the small pistol-rifle cases such as the
25-20, 256win., and 30 carbine.

AA-1680 was it's replacement when it was discontinued.
and no accurate doesn't have any data for 1680.

I have used H-110 for .410 loads in the past and I’ve seen 680 has been used in place of H110, but not sure if could be used for .410 load, which prompted the question

quote:

Originally posted by Lamar:
I dug through all my Winchester data books back to the 1970's.
they show H-110 back then in the 410.

680 was used in the small pistol-rifle cases such as the
25-20, 256win., and 30 carbine.

AA-1680 was it's replacement when it was discontinued.
and no accurate doesn't have any data for 1680.

They don't ?

https://hodgdonreloading.com/rldc/

A couple of early editions of Reloading for Shotgunners lists Win 296 as their powder for the 410.
H-110 is relabeled Win 296, both the same powder.

OK, from a logical standpoint...

It "could" be used as a .410 powder. Its slower than the usual powders so the odds are it would require unusual stack height in the case, it will likely be very dirty, and it probably will generate substandard pressures at the usual stack heights in .410 shells.

Whether it would be "close enough" for you to find it acceptable is more up to your needs.

I expect it would have a high rate of blooper shells (poor ignition) and very variable velocity due to the powder speed mismatch.

Coming up with a load might be doable by playing with some load development software (quickload, etc.) and then doing some pressure testing. (send in to Precision reloading, Tom Armbrust, or getting a strain gauge barrel of your own...) all of which are pricey.

I've been loading shotgun for quite a while and I have never heard of this combination (or 680 powder, but was able to find some mention about the powder in general context on the internet as above) and my usual experience is that means that it is sufficiently suboptimal that too many compromises need to be made to make it worth the effort.