FIG. 1 is a top, front, left side perspective view of a first embodiment of the powder cartridge according to our new design;
FIG. 2 is a bottom, front, right side perspective view thereof;
FIG. 3 is a front elevation view thereof;
FIG. 4 is a rear elevation view thereof;
FIG. 5 is a left side elevation view thereof;
FIG. 6 is a right side elevation view thereof;
FIG. 7 is a top plan view thereof;
FIG. 8 is a bottom plan view thereof;
FIG. 9 is a top, front, left side perspective view of a second embodiment of the powder cartridge;
FIG. 10 is a bottom, front, right side perspective view thereof;
FIG. 11 is a front elevation view thereof;
FIG. 12 is a rear elevation view thereof;
FIG. 13 is a left side elevation view thereof;
FIG. 14 is a right side elevation view thereof;
FIG. 15 is a top plan view thereof; and,
FIG. 16 is a bottom plan view thereof.
The dash-dash broken lines illustrate portions of the powder cartridge that form no part of the claimed design. The dot-dash broken lines represent boundaries of the claimed design and form no part of the claimed design.