There is a table on p. 182 in SR3:
I'd like more detail in this table. I hate to be accused by my players that I give this ammo OR of 7 just because I don't want them to cook the Cyber Zombie (w/ auto shotgun) on their first fireball. Compounding the problem, I have a player who expects "Analyze Device" to be a useful spell.
I thought the right way to attack this was to first try to understand: What was the writer's intention with the original table?1. All
natural Objects have a maximum OR of 4. Which ones should get 3, which 4? Should Orichalcum have 2 (or less) as it's supposed to be extraordinarily susceptible to magic?
2. Did the writer want to tell us anything with the
distinction between objects and
materials?
I guess the writer thinks there are no unprocessed materials. (As soon as it's used to build anything, it is processed.)
Is complex toxic waste an object?
Did the writer maybe mix OR with Background Count here, which also drives TNs up?
3. Does the writer know how complex a simple plastic is, molecularly?
What are your guidelines to determine Object Resistance Ratings?Does size matter? (No jokes please.)
Does miniaturisation matter (CPUs)?
Homogeneity? (Word?)
Date of inception?
Should Background count be factored in?
Temperature?
Microorganisms?
How do you weight complexity in manufactury (# of steps, needed tools, length of tool chain, processes, difficulty) or final complexity of structure (molecular or other)?
What are Object Resistance Ratings for typical objects/materials in your game? Reasons?Please feel free to rate these, but don't confine yourself.
Franchi shotgun w/ normal ammo
Vindicator w/ APDS
Ruger Thunderbolt
AVS
Ford Americar
Stereo
Lone Star Strato-9
Glass pane
Plascrete
Sheet metal
Reactive armor
Living coral
Diesel fuel
Ethanol
Cellphone
Fairlight Excalibur
Ares Dragon helo
Blimp
Aircraft carrier
Motocross bike
SOTA racing bike
Bicycle
T-Shirt
Chemical plant (discriminate)
Duct tape
K-Bar knife
Katana
Dicoted katana
FAE
Thermite
Diesel / fertilizer bomb
C4
Uranium (natural)
Uranium (depleted)
Uranium (enriched)
Flak vest
Military grade body armor
Abrams
Banshee
Space Shuttle
Paper
Credstick
Lock (discriminate)
Fuse box
Fuze
Gold
Iron
Aluminium
Steel
Damasc steel
Monofilament whip
Soy burger
Wanda, the Stuffer Shack cashier

(My players seem to think she needs one)