got this back from Eabco;


Subject: E. Arthur Brown Company Inc: Update Tracking #9741

Thanks for asking. I have published load data for various EABCO cartridges but since 243 Win has so much published data already, I have not published anything of my own... And in fact I don't know that the loads I worked up long ago (if I could find them) would be any better than what is already published.

I recommend three online sources for load data on the 243 Winchester:

https://www.vihtavuori.com/reloading-data/

http://www.hodgdonreloading.com/

http://ammoguide.com/

Sincerely,
E. Arthur Brown Company Inc