I have found 28.8gn of N133 with CCI BR - 4 primers in Sako brass, pushing a 55gn ballistic tip works very well.
Also 28gn of the same N133 with the 70gn B-tip works for me. I have had somewhat erratic performance, from .2MOA to just over MOA, but I have gone upped my scrutiny of cases and things have come together nicely.

Does anyone else have some good loads for the 55 & 70gn ballistic tips in 6PPC?