I would just use std. Fiocchi 'Game & Target' 1oz load in 2&3/4" case. They have Vo of about 1200fps and consequently are very pleasant to shoot shells. I have seen them in 16br at local Gander Mountain for $7.99 or $8.99 per box which is quite reasonable.
With few exceptions most of that B&P stuff starts off at about 1400fps so 'Ole' Frau' is going to get quite overbearing.