Mainspring data thread

[look no hands]

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- 13.8- 3.3- 30- 255
08- 20.0- 13.8- 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

Well I've just received a no8 spring and measured the ID and it measures 13.3mm at one end and 13.4mm at the other but looking at the list, if you take 6.6mm (2 x 3.3mm wire size) of the OD of 20mm then that works out to be 13.4, so I'd say the list is wrong, I'll correct it now.

Pete

Pete

[TonyL]

Bravo!

[look no hands]

Bravo!

I've just measured the no6 spring I have spare and even some of the measurements for that are way off from the list

Pete