Interesting stuff.
We had them go in 50 ish shots with hunting loads.
Hunting loads has nothing to do with it. The buffers are old and dried out from sitting
Every super x1 I buy or sell has a new returnl spring & follower, buffer ,o-ring , extractor and spring min
Most I change all the hammer spring,install a chrome mag tube also if I still have any left if not a new stainless one and firing pin spring
Bullet proof after that
There are kits out there here is just one
Cheers
This kit contains the following:
1)NLG29SX1-Bolt Slide Buffer
1)USR56SX1-Cocking Handle
1)USR66SX1-Extractor
1)USR67SX1-Extractor Plunger
1)USR68SX1-Extractor Spring
1)USR69SX1-Firing Pin
1)USR72SX1-Firing Pin Spring
1)USR76SX1-Gas Seal-Blued
1)USR141SX1-Hammer Spring
1NLG98SX1-O'Ring
1)USR104SX1-Piston Ring-Inside-Blued
1)USR105SX1-Piston Ring-Outside-Blued
1)NLG114SX1-Return Spring
1)NLG115SX1-Return Spring Follower.