Tin Man wrote:
All Remington hulls load the same, use STS data, that would include the Blue Peters.
The original post mentioned "older hulls", so the general advice here might need some qualification depending on the age of the hulls.
Below is a photo of some blue Peters hulls. The two on the left should not, and probably cannot, be loaded using STS/Gun CLub recipes. These have very high basewads and need appropriate recipes.
According to common wisdom on this forum, the RXP hull (middle), the Blue Magic/Peters Target load hull (2nd from right), and the Gander Mtn-Peters hull (far right), all can be loaded with STS data.
(The current Remington two-piece high-brass hunting hulls do not use the STS data, although the one-peice high-brass hulls do.)