Okay, how are these?, Getting opinions as I design Options

[lorthazar]

Someone suggested instead of using real world ammons I should design my own cartridges for use in customized weapons. I had a few ideas and I would love your input and ideas.

1mm Short Needle: A rather unique round based off the concept of the Guass Needler, a weapon of science fiction. Made of a high durability ceramic and propelled by a generous charge, this round slips past ballistic armor like a hot knife through butter. The damage they inflict is slight, unless vital organs are hit. Impact armor stops this Needle dead in it's tracks. For all purposes these frangible needles treat Impact Armor at double it value and hardened. Due to their small size the ammo capacity of any weapon using Needles is multiplied by 10. Can only be used in Clip fed weapons.
Damage Code: 6L
Game Effects: Ignores Balistic, Double Impact, 1/3 recoil
Special Ammo Availaibilty: None
Street Index: x2

2mm Heavy Needle: A rather unique round based off the concept of the Guass Needler, a weapon of science fiction. Made of a high durability ceramic and propelled by a generous charge, this round slips past ballistic armor like a hot knife through butter. The damage they inflict is slight, unless vital organs are hit. Impact armor stops this Needle dead in it's tracks. For all purposes these frangible needles treat Impact Armor at double it value and hardened. Due to their small size the ammo capacity of any weapon using Needles is multiplied by 10. Can only be used in Clip fed weapons.This needle can not be used in any weapon smaller than a Heavy Pistol
Damage Code: 9L
Game Effects: Ignores Balistic, Double Impact, 1/3 Recoil
Special Ammo Availaibilty: none
Street Index: x2

5mm Short: Designed as a general purpose light round. It combines ease of use, accuracy and stopping power in a small package. Useful for small game and self protection as well as target practice.
Damage Code: 7L
Special Ammo Avaialbility: All except Anti Vehicle.
Street Index: 1.1

5mm Long: Pure unadulterated speed. This little monster actually packs more propellant than bullet in weight. This allows the small round to do some serious penetration. However the round does not expand well and often shoots through the target.
Damage Code: 12L
Restricted to: Assault Rifles, Sport Rifles, and Sniper Rifles
Game Effect: Double uncompensated recoil
Special Ammo Availabilty: All except Capsule
Street Index: 1.8

9mm Pitbull: A redesign of the classic 9mm Parabellum. Using new propellants and larger slugs to make this a true combat classic.
Damage Code: 7M
Restricted to: Light Pistols and SMG's
Special Ammo Availability: All
Street Index: .8

9mm Mastiff: Inspired by the success of the PitBull the mastiff is designed for heavy hitting Assault Rifles.Unlike the 5mm Long the Mastiff combines decent velocity with heavy bullets for rounds that just hit hard.
Damage Code: 8S
Restricted to: Assault Rifles and Sporting Rifles
Game Effect: Double uncompensated Recoil.
Special Ammo Availability: All
Street index: 1.2

Feel free to submit your own ideas as this is not a complete listing of my ideas, but you never know I might like yours better.