I did national service in the Norwegian Field artillery last year, and thus have some first hand knowledge of the loading and fiering of artillery, namely M109A3GN 155mm self proppelled howitzers. This version is not the autoloading Paladin fielded by the US, but has a manualy loaded Reihnmetal weapon. Granted, it is not actual WWII piece, but judgin from the older display pieces (Among them 105s) we had standing around the mecanism is basicaly the same. And some of sigth adjustment instruments had the eagle of the Reich on them.
On the the issue of artillerty endurance, this is dependent on many factors, like previous activity that day and ammo supply. The battery record for a three shot barrage was about 13 seconds. The procedure was of course not exactly acording to drill, but thats probably the way it would be in a war. A trained 155mm crew can, upholding drill and all, fire a three shot barrage on a 20-25 second average without to much extra effort. This is using separate bag charges, and having to ram the grenade into the chamber. A 105, fiering regualr shells, could fire a barrage much faster. We did series of several barrages in fast sucsession without great dificulty, and again a 105 crew would have a even easier job.
It is my impression that what takes time in bringing down arty fire is not as much the reload time of the weapon, with the exception of the REALY big guns, but calculating the fiering data. We did this by computer. We did however fire with manualy calulated data at one ocation during the final testing of the battery. During this shoting the guns where on stand by while the data was calculated, wich took some minutes. It would therefore be asumed that the time between shots is CM is actualy used for calculating and reaiming rather than just reloading. Maybe the rate of fire should increase when the guns are zeroed on a target?
There is altso a strong posiblity that the reload time is a game balancer. A six gun 155mm battery each fiering three shots in 25 sec would maybe be a bit to much firepower for a blanced game. But a full Nebelwerfer barrage would be a awsome sigth
[This message has been edited by Thorondor (edited 09-14-2000).]