I have been loading the new Claybuster 3/4 oz. wads, CB0175-12, using 16.5 grs Red Dot, Winchester 209 primer in either the Remington Nitro, STS, Gun Clubs or Winchester AA's.
These loads are in the 1250 to 1300 fps. and 6700 psi. range.
Claybuster gives their loads using Remington primers with Remington hulls, and Winchester primers with Winchester hulls.
Straying from their data, I am using Winchester primers in both hulls. From looking at data, I don't believe the psi changes more than 300 psi changing one for the other.
A very nice shooting load that breaks clays nicely.

David