While they are the norm here for folks that know what they are talking about....is it possible for someone to list the common ones used here with their meanings?
If possible...Thanks in advance.
spricks

I'll get it started for you and others will chime in through the night.

RB - round butt
SB - square butt
TH - target hammer
TT - target trigger
TS - target stocks
3 T's - target hammer, trigger and stocks
WO - white outline
RR - red ramp
SS - service stocks
3 screw - # of side plate screws
4 screw - side plate screws plus one under the barrel
5 screw - 4 on side plate plus one under the barrel
P & R - barrel pinned and recessed chambers
IL - internal lock
DA - double action
DAO - double action only
SA - single action
MIM - metal injection molding
PC - performance center

Thanks for the help Ken. I'm confused with the shooting sports abbreviations like IDPA...etc...How many different ones are there? Seems like up North here it's not even common knowledge. Is that because indoor ranges are few and far between up here. Sorry for being stupid on this issue!
spricks