nrlulz
Squeeze Bore
Had an idea. APDS/CR is such a nightmare of a munition to balance, so maybe here's the next best thing.
Basically, squeeze bore cannons utilize a tapered bore with a subcaliber shell to strangle the shell as it comes out of the barrel, which in turn dramatically affects muzzle velocity. Like putting your thumb on a garden hose. The shells, called Armor Piercing Composite Non Rigid, has a normal or sabot/CR type shell with an outer ring of a softer metal that can collapse in the barrel. Some guns in history used an adapter to an existing barrel or were just made as a tapered barrel. Real life drawbacks included limited munitions able to be used without changing the adapter in the field, barrel life very diminished, and rarity of materials for CR type shells.
So, how can this translate to ACF? Basically, a new category of cannons. They will be restricted to APCNR only, making them not able to fire any explosive munitions. Now, squeezebores are capable of firing other munitions, but this is ACF. Higher penetration rounds than AP need some stark drawbacks to make them not outperform solid shot AP. Codewise, we would need to have a modifier for FrAera so a cannon will be listed as, say 75mm, but the actual projectile is only 50-60mm.
So let's just make a table of the advantages/disadvantages compared to regular cannons and AP.
Squeezebores vs cannons: -Can only fire APCNR. -Much higher muzzle velocity (at least 500+ m/s more) -Much higher penetration (25-50% perhaps) -Much less prop damage, like HEAT. Makes this ammo not very useful in high weight ranges where Damage > Penetration. -Because faster things ricochet more in ACF, less useful against extreme slopes. -I would suggest a lower rate of fire perhaps, with an explanation that a lower rate of fire may protect the longevity of the barrel, giving it more of a chance to cool after firing. -Less weight/damage efficiency, as you still carry full bore ammunition despite the fired caliber being smaller.
