FYI

Primex was purchased by General Dynamics and is now known as St. Marks Powder. Their rep told me its the same plant and people just different ownership. Primex and now St. Marks manufacturers many of the powders marketed by Hodgdon and Winchester.

And, didn't I hear that Hodgdon bought the W-W line of powders?

Hodgon bought IMR... don't know about Win powders.

Yup, Hodgdon bought IMR. Two Hodgdon and WW powders are the same thing.

Two powders are the same from both Hodgen and WW.
H110 is the same as W296.

HP-38 is the same as W231.

Hodgdon 414 is the same as WW760. Hodgdon HS-6 is the same as WW 540, and Hodgdon HS-7 is the same as WW 571. I believe Winchester has discontinued 540 and 571.