Introduction
This is a conversion package for 3g3 to 2300AD. It is the second one done, but at least with this one the Stracher P-11M doesn't mass more than a FAM-90....
Tech Levels
Tech Level convert as following:
| 2300 TL | 3g3 TL | Technologies |
| Post Twilight War (2000-2050) | 8 | Self Loaders |
| 2050-2100 | 9 | Submachine Guns |
| 2150-2200 | 10 | Bullpup Configuration |
| Modern Old Commercial (2200-2240) | 11 | Caseless Rounds |
| Modern Old Military/ New Commercial (2240-2285) | 12 | LMS Lasers |
| Modern New Military (2285 +) | 13 | Binary Propellents, Gauss Weapons, Plasma Guns, FDLMS lasers |
Damage Conversions
Damage value (DV) in 3g3 is a measure of armour penetration. In 2300AD Damage Penetration Value is a measure of both penetration and physical trauma to human flesh etc. (the same is true for all GDW game, for an explanation see FF&S). This means that unlike 3g3 we don't divide by the bullet diameter in cm. So the formula for energy only DV is:
DV = (0.735 * Kinetic Energy)0.5
To convert to 2300's DPV we divide DV by 50.
Note, this only applies to modern weapons, which all have active penetrators (sidebar in the AG). For weapons which don't have active penetrators (Some civilians weapons and ancient weapons) divide the DPV by 1.5.
If the weapon has a APHE round, then multiply DPV by 1.5.
Range Conversions
Basic range is initial determined via the Aiming Range Class:
| Range Class | Base Range |
| 1 | 5 |
| 2 | 10 |
| 3 | 25 |
| 4 (Maximum for shoulder arm) | 50 |
| 5 | 100 |
| 6 | 200 |
| 7 | 400 |
| 8 | 800 |
For each point damage RC is in excess of aimed RC multiply base range by 1.2. For each point below multiply base range by 0.8.
For each point of IA above normal multiply range by 1.2. For each point below multiply by 1.2.
The most important part for rifle is the sight. This will multiply range
by upto 20 times.
| Magnification | Commercial Sights (TL 11) | Old Military Sights (TL 12) | Modern Military Sights (TL 13) |
| 1x - 2x | 5 | 10 | 15 |
| 2.5x - 5x | 10 | 15 | 20 |
| 6x and above | 15 | 20 | 25 |
Example: FAM-90
The FAM-90 fires a 0.96g projectile at 1600 mps. It's aiming RC would be 7 if vehicle mounted but the physical limitations of humans mean it's Aiming RC is 4. It's damage RC is a pitiable 1. It's base IA is 2, but is bought at 4 times the regular price for an extra 2 pips of IA above normal.
It base range is thus 50 * 0.8 * 0.8 * 0.8 * 1.2 * 1.2 = 36.864 m
The FAM-90 has the best sights France has to offer, which multiply this range by a factor of 25 to get a calculated range of 921.6 m. Which is rounded to the nearest 50 to get the book range of 900m.
The result of this is that Aimed Fire has an exceptionally long range of 900m, but suppresive fire only has a range of 40m (actually less, as the FAM-90 fires at a lower velocity in this mode).
Sight weights and costs are dependent on the magnification, and options.
| TL11 | TL12 | TL13 | |
| Low Magnification | 0.1kg | negligable | negligable |
| Medium Magnification | 0.4kg | 0.2kg | 0.1kg |
| High Magnification | 1.5kg | 0.6kg | 0.3kg |
The cost is dependent on the weapon, the base cost of a sight is:
X = ((DV2 /10,000) +0.1) or 2, whichever is lower.
Lv = X * M * T
where:
M = 3 for Low Mag, 9 for Medium and 27 for High.
T = 1 for TL11, 2 for TL12 and 3 for TL13
Example: FAM-90
The FAM-90's sights mass 0.3kg.
X is calculated as 0.19, so the value of 2 is used, which is multiplied by 27 * 3 for a final cost of Lv162.
Gauss Weapons
NB 3g3 contains several typos in the Railguns chapter:
1. Not that we use this, but in the Railgun DV formula it should read
cm, not mm
2. In the barrel length formula delete pi (3.1416)
Design exactly like a regular TL-13 railgun. The only difference is that 2300's power cells are twice as efficient. The power cell shunts power into a capacitor, which then fires the laser. 2300's batteries are TL14, not 13.
You need a number of capacitors equal to ROF. Each Masses (M.E. * 3.3 / 125).
The power cell shunts power to the capacitor at 60% efficiency. So, overall for a gauss weapon the required mass of batteries per shot is:
Mass = 5.5 * Energy / 2100
The other difference is accellerator length, use projectile diameter in cm not mm in the formula.
Example: FAM-90
The Muzzle Energy is 1225j, which requires 4042.5j of input energy from the capacitors. It has 3 capacitors massing 32.34g each.
The magazine batteries mass 3.208g per shot, and the rounds 0.96g. The magazine hold 60 shots so the internal mass is 250g. It is a detatchable box, so this is multiplied by 1.2 to give a magazine mass of 300g.
The mass of the accellerator is 1750g, which is multiplied by 1.06 to give the base weapon mass (1855g). The accellerator is 69cm long (I am ignoring the minimum RC bit), and the receiver 4cm long for a basic weapon length of 73cm. To this the length of the stock is added (5cm) for a total length of 78cm.
The Basic weapon masses 2.3kg, the sights 0.3kg and the attatched 30mm GL masses 2kg for a total unloaded mass of 4.6kg.
Bulk
Bulk is length/ 30, rounding nearest.
Cost
Cost is normal cost divided by 4.5 (to convert credits to Livre). This doesn't quite work.
Lasers and Plasma Guns
To follow, although I have a hard time justifying Plasma Guns as written in a Hard SF setting.