Hi all,
I was talking to a gunsmith who sells and uses Titan springs and he showed me a revised list after I had problems with a no12 spring being the wrong size according to the popular Titan list that is on the internet, the list below is what has been measured by the gunsmith I talked to.
NO- OD - ID - Wire- Coils- Length
01- 21.0- 14.5- 3.2- 31- 280
02- 22.7- 15.5- 3.6- 30- 291
03- 20.8- 14.7- 3.2- 34- 304
04- 22.6- 15.6- 3.6- 28- 252
05- 19.0- 13.1- 3.0- 32- 290
06- 19.7- 13.3- 2.9- 39- 341
07- 20.0- 13.4- 3.3- 30- 255
08- 20.0- 13.4- 3.3- 34- 295
09- 21.0- 14.7- 3.3- 27- 280
10- 21.0- 14.8- 3.1- 27- 230
11- 18.8- 12.8- 3.0- 31- 230
12- 18.9- 12.6- 2.9- 36- 295
13- 19.4- 13.0- 3.1- 39- 340
14- 22.7- 15.4- 3.6- 37- 358
15- 17.5- 12.1- 2.3- 33- 254
All measurement in millimeters.
Hope it helps.
cheers
Pete