doublegunshop.com - home Forums General Discussion DoubleGun BBS @ doublegunshop.com LOADING Pb in 2 7/8 10 ga?

Using the load of 25 gr of 7625 in my 12's and
20gr.of Pb in my 12's I decided to use the ratio which
is 25/20 or 75%. Using that I come up with 80% of 7625 which would give me 25.5 gr in my 10's or about 20% less. I think I will start with 24 gr and work up.
As a confession, I mistakenly loaded some 32 gr.Pb instead of 7625 a few years ago in a 10 ga that I had and noticed it kicked somewhat more before I discovered my mistake ,but nothing terrible happened.So 24-25 gr here we come.
As a matter of interest, 20grs Pb with 1 1/8 oz in a 12 ga AA hull is only 6300 psi
Thanks for the help