I have an LC 20 with 2 1/2 in chambers.
How low on psi should I load 2 3/4 in shells for this?

For my other 20's I reload this load:
Win AA Compression Hull
20/28 15.5
WAA 20 wad
W209 primer
8880 PSI
1200 fps

So my questions are:
Is perhaps the 8880 psi OK to shoot in 2 1/2 in chambers?
Is the 1200 fps too much for the old wood?

I am not having much luck finding a low pressure load with lower psi.

Thank you for any suggestions.