I am very sorry my friend but I never said that 209 primers were too hot, indeed they are I believe fitted to many black powder cartridges and are recommended.
What I do suspect is that the 209M Notice" M for magnum" Which are the ones I have, are too hot but I cant find a definitive answer and that's why I asked "if you carefully read my OP" Hoping that someone on this forum had used magnum primers with a light load.
Instead what I seem to get is folk who cant read "Oh well"