Artillery development and Gribeauval myths
The development of artillery is an interesting question, which in its Napoleonic version is surrounded by much myth, notably the "innovations" of the Gribeauval system and supposed French tactical superiority. Like many myths, it has resulted from readings secondary sources and then applying an agenda - the worst feature of this being US writing, which has been distorted by US adoption of the Gribeauval system during the AWI, made worse by the West Point/Princeton school of thought (Elting, Craig, Graves and others) that they are the natural descendants of Napoleon's army - it gets round the awkward question of Moltke's development of modern war in the late 19th century.
Guns - as rightly said above - were basically infantry support weapons around 1700 and the main battalion gun (ie: attached to a specific infantry unit) was the 3pdr (the French used a heavier 4pdr calibre), which were just pop guns.
I did cover this in some detail in Osprey Warrior 24: Austrian Grenadiers and Infantry and additionally in New Vanguard 72: Austrian Napoleonic Artillery as an addition to Rene Chatrand's two Osprey New Vanguards on the French artillery (see above).
Basically, these guns would be about 100 paces (200-250ft) ahead of the main line and would soften up the opposing line. As the guns came under infantry fire, they would pull back into the main line to fire from there, usually firing canister at that stage to cover the infantry while they reloaded. That was always their role, so no, they did not decide anything, but added firepower.
The key problem was weight really, which prevented anything over 6pdr being in the field until the Lichtenstein guns of 1753 significantly lightened the carriage by paring down the wood and strapping it with iron, while the barrel was significantly reduced in length. At the same time, the development of horizontal boring from 1739 enabled L to reduce the windage significantly, so that the powder load could be reduced and placed in its own bag. This made the 6pdr more mobile and the 12pdr could be a field gun for the first time.
At the same time, the commanders were keen to reduce the number of holes in the lines for the guns and generally, an Austrian regiment massed its guns in two holes (see Warrior 24 p.32). Generally all nations were putting guns into batteries to protect the flanks and using them as reserves. In the & Years War, Frederick of Prussia began using horse batteries and by the 1780s most nations had some kind of horse artillery. Contrary to another myth, these guns did not go racing off with the light cavalry - just consider the weights! Their purpose was to add firepower at key points quickly.
The French had a slight cash problem from the AWI onwards and lacked a significant horse component until 1803. Their philosophy on how to break a Frederician line was to mass artillery in front of large formations of infantry and smash through - this began at Jemappes 1792 (see First Empire 77 or on Magweb) and you can see it in many battles including Lodi, Eylau, Friedland, Aspern and Wagram. Contrary to another Elting myth, Senarmont did nothing more than this at Friedland - the claim that he was out on his own comes from S himself and is countered by Girod de l'Ain of 9e Legere who describes being in square close behind, while S was pushing his 30 guns forward by manpower.
The Allies were however already on to this - Austrian gunner Smola was out on his own with a Cavalry battery and a few other guns plus a cavalry escort, when he ripped up Miranda's column at Neerwinden in 1793, and three months later, Rouvroy put Cavalry batteries on the front of 4 columns and smashed his way through the French position at Famars. Over the 1790s, you get large batteries up to 17-18 guns on both sides holding key points at battles like Wurzburg 96 and Marengo. As the armies get bigger so there is more artillery - the Russians deployed two 60 gun batteries at Eylau to destroy Augereau and by Aspern, Smola is using 200 guns to pour fire into the French. It is the increasing numbers of guns and to some extent better terrain (3pdrs were popular in Italy because it was mostly cut-up farmland and watercourses), which led to the mobile 6pdrs and the big 12pdr batteries (although these heavy weapons were rarely moved in the battle). Artillery became a softening up tool and part of the Napoleonic battering ram - but failed against steady infantry supported by able gunners from Aspern onwards.
As I mentioned above the big myth is that Gribeauval was the major development.
A summary of Gribeauval's own life is in Wurzbach (Biographisches Lexikon des kaiserthums Oesterreich 1856-91) best accessed at:
http://www.literature.at/webinterface/library/ALO-BOOK_V01?objid=11809&page=334&zoom=3&ocr=
Jean Baptiste Vicomte de Griebauval was born in Amiens on 15th September 1715 and died in Paris on 9th May 1789. He joined the Royal Army artillery as a volunteer in Paris in 1732 and was commissioned in 1735. Above all, he devoted himself to the miners section and had advanced to Captain in the Miners in 1752. His reputation as a skilled miner was so great that the then Minister of War Comte d'Argenson selected him to study the Prussian artillery, which was then enjoying the highest reputation in Europe. Gribeauval undertook this task with great success and wrote a comprehensive report about the set-up on the Prussian borders and in its frontier fortresses. In 1757, as a Lt-Colonel in the Miner Corps, he accompanied Comte de Broglie to Vienna. At the start of the 7 Years War (1756), Empress Maria Theresa had asked the French King to transfer some able artillery and mining officers. Griebauval joined the Austrian army in 1758 as a General Major, serving with the artillery. In this post, Gribeauval demonstrated his exceptional knowledge, commanding the Austrian artillery in the siege of Neisse in 1758, improving the fortifications of Dresden in 1759, directed the siege of Glatz in 1760, and held a command in 1762 under FML Guasco in Schweidnitz (it had been captured in Oct 1761). The Prussians began their siege to recapture it on 6th August 1762. Frederick particularly mentioned Gribeauval as a key component of the defences and the Prussians were unable to counter Gribeauval's use of explosive mines. Frederick complains that the "Engineer Gribeauval" is always preparing new tricks against us. The fortress only fell on 9th October 1762 and that was only because a shell fell in the main magazine and ignited it. After initialling refusing to acknowledge Gribeauval, Frederick invited him to dine. Appointed a Feldmarschalleutnant by Empress Maria Theresa in 1763, he returned to France at the end of the war and in 1764 was appointed a Lieutenant General. In 1776, he became Inspector General of the French artillery He later fell into disgrace because of court intrigues, but was appointed Inspector General of the grand Arsenal by Louis XVI although he died soon after. He was involved in several changes in the artillery and mining service, eg: shortening the barrels to 18 calibres, the prolonge, the Wall carriages tested during the siege of Schweidnitz.
His efforts in this area were collected in "Tables de constructions des principaux attirails de l'artillerie, proposes et epouvees depuis 1764 jusqu'en 1789 par Msr de Gribeauval, executees et recueilles par Msr de Mauson, marechal dechamps, et par plusiers autres officiers du corps royal d'artillerie du France" (Paris 1792). (3 vols with 125 plates).
There is also a regulation called "Reglement concernant les fonts et constructions d'artillerie de France" although only 120 copies were produced of this.
The main source for this was Gaucher de Passac: Precis sur Msr de Gribeauval (paris 1816)
So, a few points come out of this. First Griebauval was actually a specialist miner within the French artillery. Secondly, he taught and directed siege tactics. Thirdly, his "collaboration" with the Austrians extends only to siege tactics and the testing of a new design of Wall Carriage (presumably the one with the runner on p.22 of New Vanguard 72: Austrian Artillery of the Napoleonic Wars) in 1762.
Then, there is no reference here to any "new siege gun design" of 1748 - when he was in fact just a captain in the artillery and focused on mining. The design seems to be something Austria was developing in the early 1760s for fortress work.
Most importantly, the actual primary work is "Tables de constructions des principaux attirails de l'artillerie, proposes et epouvees depuis 1764 jusqu'en 1789 par Msr de Gribeauval, executees et recueilles par Msr de Mauson, marechal dechamps, et par plusiers autres officiers du corps royal d'artillerie du France" (Paris 1792). With 125 plates, it should tell us most things - but the start date for Griebauval's changes is 1764, a full eleven years after the Lichtenstein system came in. It would also appear that G had a similar role to L as Artillery director - that is okay as we use L as shorthand and thus can also refer to the G system, but he is apparently not designing anything, as that work is being done by Mauson, marechal dechamps, and several other officers.
So, if we look at the Lichtenstein system, which G reported on in March 1762, we can see all the key features - the light carriages, shorter barrels, reduced windages, standardisation of designs and components including wagons, packaged ammunition, the bricole (in use in a 1757 print), the traversing spar at the trail end to aid sighting - which are normally attributed as Gribeauval "innovations" (note the key 1792 book above specifically states that G's changes date from 1765). While it is true that as Artillery Director, G did introduce the prolonge (rear drag rope) and the G system has a metal axle, these were hardly a step change in artillery. Going to Chatrand's Osprey on the heavy French guns, he points out in one picture "note the long trails" and then in the text that the guns were elevated by the older quoin (block moved by a screw system). These are in fact direct copies of the L heavy guns as will be apparent from a quick perusal of the relevant part of NV72.
The more interesting aspect is the field guns. Gribeauval copied the L guns in terms of their principles, but being a miner and siege technician, he had not had much to do with them directly and made a hash of it. If you look at the carriages, these are still in the old Swedish style with a three-way shape to them (this certainly persisted elsewhere until 1747 as the Austrian 3pdr on p.6 of NV72). Although the cheeks (or Germanic: walls) are pared down and strapped in line with L, they are still somewhat wider. The barrels are cut down on the same basis as L, but badly cast - the G 12pdr barrel weighs 880kg compared with L 800kg. By way of comparison, the L 6pdr is 380kg and the Yr XI French barrel is 390kg. Traditionally, the excuse has been that G had to take the larger French powder charge, but that is obviously wrong when we consider that captured pieces and the YrXI barrels took these charges. G also continued with the heavier French 4 and 8pdr barrels (plus the 12pdr), the 8pdr requiring the double movement/firing position. The 4pdr was withdrawn as other nations withdrew their 3pdrs, but the 8pdr was also abandoned as an ineffective weapon - it was simply too heavy (the G guns have a double ring on the trail end so two spars can be used to lift/move it). The other problem with the G system was that it was not standardised - it still required 23 different sizes of wheel (L required 5). G also left the ammunition box on the trail (a feature of L which was changed around 1780), which just added to the weight. The elevating system already existed on the French 4pdr. As mentioned above, Gribeauval introduced a larger charge - it seems an odd thing to do when one of the (false) innovation claims was that he reduced the windage - since doing so actually allows you to reduce the size of the charge as less of the explosive force is lost in the gap between ball and barrel. While this gave the French guns a greater range, as early as 1795, d'Urturbie noted that French 8 and 12pdrs should not be firing beyond 3000ft (950m) as targets get obscured and the projectile is more affected by wind. This is within the range of the L guns. These larger charges also meant that the minimum effective range of a French gun (ie: the point where the ball drops to man height is about 700 paces (450m), but the Austrians soon noted that if they could get within this and to about 500 paces, then the French guns lost accuracy as the barrel was below level. So, the French were fin when they advanced and could dictate the range and even better could fire masses of metal in the hope of hitting something (They fired 96,000 rounds at Wagram for Austrian total casualties from all causes of about 23,000), but once on the defensive, they experienced significant problems.
One of the earliest acts by Napoleon, when he came to power was to order a reform of the artillery, which resulted in the Yr XI system. The guns themselves were developed from the 60 captured by General Allix in Turin in 1800 ( a mix of Austrian and their related Piedmontese pieces). If you now look at the Yr XI system, you will see it is an exact copy of the L gun, except that the barrel is now smooth externally (a change which this system does not get the proper credit for). The carriage is lighter and the cheeks/walls are straight. Similarly, Frederick the Great adopted the L 12pdr and his guns (although Prussia did not have a system as such) are copies of the L system - see Osprey MAA381 pp.35-6. The French were short of cash by 1803 (YrXI) and so, only the 6pdr and 5.5in howitzer (the Austrian 7pdr) were introduced. Thus the G 12pdr stayed in service and the lighter weapons were either deployed to Spain and Italy or went back to the depots. It is quite likely that the French capture of the great Austrian foundry at Mecheln (Belgium) in 1794 also pushed them towards 6pdr barrels. However, by 1808, the French were getting seriously short of cash and following significant enemy gun captures (especially Austrian pieces), the decision was made to halt Yr XI production. After the losses in Russian however, the spare captured pieces and G guns were pulled back into service. After Waterloo, there was a lot of debate in France over what to do next - the shortage of cash meant that they reverted to the G system as they still had some of those guns! Although Ruty reported after the Nap Wars that the G system should be retained, General Vallee was intent on overhauling the system and in 1827, when cash allowed, the Congreve block trail was adopted and the 6pdr barrel became the main weapon. Allix had noted that the G 12pdr was too heavy to be an effective field gun in 1815.
Thus, the idea that Gribeauval was a gun designer is wrong, that innovations came in under his supervision is wrong bar the prolonge and metal axle and the only reason he has any status is because the US adopted his guns, when everyone else was taking on the L guns and later the Congreve block trail.
The five Osprey books cover French/UK/Austria very well and Alexander Zshmodikov's books on the Russian army include the Russian guns/tactics. I hope Osprey will produce a Prussian NV in due course, as it has been offered to them.
Beware of US books as they are all from this "national" heritage and despite recent events, remain so French-biased that they lack much objectivity (Nafziger aside in Imperial Bayonets, although he addresses tactics really).