The .375 H&H is a standout among model 70s, bearing several features which are unique to the chambering. These included a 25" barrel with a distinctive contour, and a dual-folding leaf rear sight.
The rear sight on the .375 H&H came in two different designs:
The Lyman 6W, which was used until 1956. This sight was used with a dovetailed base on rifles with the 25" C1 (medium-heavy) contour barrels, and without the base for the very small number of .375 H&H rifles produce with the 24" standard #1 contour barrel
The Winchester 70B which was appeared in 1953 and used through 1963. It will only fit rifles with the 25" C1 contour barrel
The hole spacing is 1.25" on both the Lyman 6W with base and the Winchester B70 sight.
These original pre-64 sights are exceedingly scarce and nearly impossible for us to keep in stock. As an alternative to the original, we also offer a post-64 .375 H&H sight. It is a genuine Winchester part and has the same hole-spacing as the pre-64 sights. The only functional difference is the post-64 folding leafs are slightly taller, which can be adjusted for with a taller front sight.