No.1 fits BSA Lightning Airsporter, Mercury, Supersport, Superstar, Goldstar, Anschutz 335, Original 35, 45, 50, 38 RWS. 24, 27, 34, 45, 50, Relum, Air Arms (all models), HW85, HW55, HW50, Haenel, Lion, ASI CF 16/20, Webley Mk3 (if the spring guide is reduced by 20 thou), HW95, HW98, HW99.
No.2 fits BSA Meteor, Milbro Diana G80 and 27, Norica, Baikal, Cometa 300/400 plus 5, 50, 100, 220 with coils removed, most SMK models.
No.3 fits BSA Superstar (12 ft-pounds only), Webley (All models except Eclipse and Mk3), Remmington Express.
No.4 fits HW35, Diana Original RWS 52, 48, 54
No.5 fits HW80, Webley Eclipse
No.6 fits HW77, HW97, Feinwerkbau Sport, also larger original models if ultimate power required.
No.7 fits ASI Sniper, Magnum (and all other ASI models).
OX No.7
ALWAYS CHECK YOUR RIFLE WITH AN ACCURATE CHRONOMETER AFTER MAKING ADJUSTMENTS. MAKE SURE TO STAY WITHIN YOUR LOCAL LEGAL LIMITS.
Please note that there are many factors involved in finding the right size replacement spring for your rifle. Even if listed above sometimes the particular set up of a rifle will result in a different size being required. It is important to replace your existing spring with a similar size spring. Our spring size chart is shown below to assist with this.