Does too much shoulder bump decrease case lifespan?

[Bart B.]

Machineguns (and many other military arms) are generally NOT reloader friendly.

Both the M1 and M14 USA military rifles match conditioned to shoot under 2/3rds MOA through 600 yards never did that well with reloaded fired cases from them. Only new commercial or military cases hand loaded or commercial match ammo did that.

 

[Metal god]

If you make a change that reduces your case life from 5 down to 2 reloads before failure, I would seriously consider undoing that change.

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