Striker Boing ?

[Alan de Enfield]

Before you go to all that trouble and the expense of buying new spring and possibly a stripping tool, just test the weight of the mainspring.
Action fired, spring weights to be between 7 lbs low and 9 lbs high
Action cocked, spring weights to be between 14 lbs low and 16lbs high.

That's what we'd do................

You could rinse it out in petrol and blow it through with an air line but, in my very limited experience with these things, if it only happened with one round, I'd say it was an ammo fault

This is what you need :
Picked up a couple of armourers 'Salter' type spring balances today.

The 'big end' hooks around the trigger and gives you your true trigger-pull figures whilst the small end hooks over the cocking piece and does the same for the striker spring.

Anyway (unashamed 'for sale' plug) - only need one so if anyones is interested drop me a PM.