Mills bomb rifle grenade by attaching a metallic rod to its base. This rod-type rifle-grenade had an effective range of about 150 yards. The operating procedure was to insert the Mills bomb rod down the barrel of a standard rifle, put a special blank cartridge in the rifle's chamber, place the rifle stock on the ground, then pull the Mills bomb's safety pin, releasing the safety spoon and immediately fire the rifle. If the soldier did not launch the grenade quickly, the grenade's fuse would time out and explode. The British soon developed a simple cradle attached to the rifle's bayonet lug
Interstate 70 in Maryland for the latter interchange, MD 75 was relocated east of New Market. The existing interchanges at MD 32 and MD 97 were converted from two-way connector ramps to diamond interchanges. I-70's interchange with MD 27 was expanded from a four-ramp partial cloverleaf to a six-ramp partial cloverleaf in 1977. Exit numbers were added east of Frederick in 1978; however, these exit numbers were each 2 less than the present numbers, which were marked in 1983. I-70 was relocated away from the original alignment of US 40 between its junctions with MD 144 in Frederick and Bartonsville around 1987; the old