Ballistic PD

The term "Ballistic PD" covers a great number of different armaments, most notably the entire roster of light point defense systems - small conventional turrets used for anti missile and fighter duty - in addition to the dual purpose secondary use of gauss and railgun weaponry to round out heavy-duty point defense. Each caliber has its own different ratings of power, range, and general effectiveness - scaled on a type based simple tier system to determine how effective it is against armored missiles and to an extent against the armor of strike craft. It is notable that larger caliber guns can use explosive and proximity burst munitions against lightly armored missiles and strike craft to deal vastly increased damage to offset their relatively slow fire rates.

Light Caliber
Light caliber point defense weaponry typically refers to weaponry in the range between 7mm and 16mm in size. These systems are virtually guaranteed to be extremely high fire-rate systems, with their power most notable against unarmored missiles due to even a few turrets being capable of throwing up virtual walls of bullets in their path. They obviously however do not have a lot of power behind them, rendering them quickly harmless and then useless against armored missiles, two points of armor making them unable to do damage at all.

Mid Caliber
Mid caliber point defense generally refers to the range of 20 to 50mm size range of munitions used for all-around standard duty against guided munitions. They have intermediate firepower at their disposal and are primarily intended for use against missiles with 1 or 2 points in missile armoring. They generally have a fairly high fire-rate, nowhere near as high the lower caliber weapons, but they are also generally more accurate. They start losing their effectiveness at 3 points of armor due to lacking the punch to penetrate the shell of the missile. These are generally the standard used most heavily due to their balance between firepower and fire-rate.

Heavy Caliber
Heavy caliber point defense weapons are best known as cannons, which serve as enormously powerful and very accurate defense against strike craft and missiles. They have a fairly low rate of fire, but are easily capable of destroying any missile apart from the ultra-heavily armored 4 point torpedoes. Their low fire-rate makes them very unsuitable against a large swarm of missiles, and are virtually useless against A0 swarmer missiles enmasse. Their power against strike craft however is exceptionally high, generally ignoring all but the heaviest armor.