orcbuster wrote:Laploading is pretty much standard on any tank without a wet stowage rack (doing this with wet stowage removes the point of this entirely) . Leopard 1 loaders had 3 rounds for instant use. 1 in the barrell, 1 in hand and 1 between the legs. Suffice to say it can be done extremely fast. (Courtesy of prettyhill, former 1A5NO operator)
If you pay attention to the video, he says the following:
The other advantage was that you can now lap load. With 105s this wasn't a problem either. Now, what lap loading is [explanation of lap loading]. This is not permissible with modern smoothbore 120mm ammunition.
In other words, he is saying that being able to lap load is an advantage of the Cheiftain's 3-piece 120mm ammunition over other 1-piece 120mm ammunition, expediting the process of loading a large-caliber shell. For 105mm cannons like the Leopard 1's, lap loading could already easily be done without this system. The Challenger 2 still uses 3-piece ammo with rifled barrel, and look at its rate of fire ingame!