If you would go to this site :
Custom Ruger Mini 14 30 Rifles Accuracy Systems Gunsmith
There is a Mini 14/30 Extra Power Hammer Spring

** A Must for those choosing to shoot steel cased
Wolf Ammo! Will help eliminate the misfired
rounds caused by hard primers. This spring
will give the hammer more force which in turn
will hit the firing pin harder. PRICE $13.99
New - Recoil Reduction Extra Power Spring
- Factory Length - Price $12.95 - Replacement Only
- Our Extra Power - $17.95 - Ours

Shock Buffer (Saves scope and receiver)
Price $17.95 Get these parts to shoot wolf ammo. I tried just the hammer spring and I found that I had to buy the other parts also. Happy shooting