The primary projectile for 7 ton and 6½ ton guns was Palliser shot or shell for attacking armoured warships, fired with a large "battering" charge for maximum velocity.
All guns were also equipped with shrapnel shells for anti-personnel use and explosive common shells for attacking unarmoured targets.
The "double" common shell was much longer than the standard common shell, and hence contained approximately twice as much gunpowder.
It was unstable in flight and hence inaccurate beyond 2,000 yards but was considered useful for attacking wooden warships at ranges below 2,000 yards.

This was the only RML heavy gun not to be issued with gas-checks.
The primary projectile for 7 ton and 6½ ton guns was Palliser shot or shell for attacking armoured warships, fired with a large "battering" charge for maximum velocity. All guns were also equipped with shrapnel shells for anti-personnel use and explosive common shells for attacking unarmoured targets. The "double" common shell was much longer than the standard common shell, and hence contained approximately twice as much gunpowder. It was unstable in flight and hence inaccurate beyond 2,000 yards but was considered useful for attacking wooden warships at ranges below 2,000 yards.
This was the only RML heavy gun not to be issued with gas-checks.
RML 7-inch gun