Titan XS Mainsprings or OX Mainsprings

[uk litehammer]

Regarding the E3650 spring. It's a multi gun fit what it fits job, made by Jim Macarri.

See here:-

http://www.airrifleheadquarters.com/...88/5414946.htm

[steveiep]

Just put a Titan XS in a SMK TH208 yesterday.
Precut to size, plus tophat & x2 thinnest slip washers above & X2 thin power bands on the spring guide.
There is ZERO preload on the spring & this produces 11.41 fpe with 16 grain FX pellets.
Add about 5mm of preload to the spring & it produced 13 fpe (needless to say it's been set back to 11.4)
No need for a spring compressor.
This rifle actually makes legal power with ease because of a 28mm dia compression chamber, so the Titan has an easy time of it.
However, the difference between Titan & Ox is like the difference between a Rolls Royce & a 30 yr old Landrover. They'll both get you there but one will jar your fillings loose during the journey