My CMP gas tube is scored!

[browningautorifle]

First, I would be picky about putting generic commercial ammo through a Garand. Depending on how the load is set up, it may or may not cycle well.

Civilian ammo will cycle just fine. It hgas all the pressure and more for the job. Here in Canada we have no selection of military surplus except the new products like American Eagle. I've ONLY shot civilian ammo and reloads for nearly fourty years in M1s and there's no problem.

The most common issue I've had with Garands (I'm responsible for the maintenance and repair of my club's Garands, never mind my own) is with dirty chambers and failures to extract.

I've never seen a failure like this, or heard of any. Not even from the others here. You must have some rifles in dire need of service.