We claim the ornamental design for a swing training weight, as shown and described.
FIG. 1 is a perspective view of a swing training weight, showing a first embodiment of our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof, the rear elevational view, left-side elevational view, and right-side elevational view all being a mirror image thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a perspective view of a second embodiment thereof;
FIG. 6 is a front elevational view of FIG. 5, the bottom plan view being a mirror image thereof;
FIG. 7 is a left-side elevational view of FIG. 5, the right-side elevational view being a mirror image thereof;
FIG. 8 is a top plan view of FIG. 5;
FIG. 9 is a bottom plan view of FIG. 5; and,
FIG. 10 is a cross-sectional view of FIG. 9, taken along lines 10-10.
The broken lines showing a bat in FIG. 1 depict environmental matter and form no part of the claimed design.