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Mobuck · May 23, 2019, 07:08 AM

I shoot steel case ammo in AR's (5.45 & 7.62) x39. I don't do "mag dumps" and I don't use them as a "bullet hose". Steel case ammo has not caused any problems beyond being marginally accurate EXCEPT FOR HORNADY which is quite accurate. I do have a Mini-Mauser in 7.62 that simply won't work with steel cases. Something about the geometry of the rim and the stiffness of the extractor(rifle is basically new) prevents the use of steel cases in this rifle.
The reports of cases "sticking" in AR's didn't happen during firing. This happened when a HOT rifle was left with a round chambered. The case coating melted in the HOT chamber and then congealed, gluing the case in place. First off: don't shoot so fast. Secondly: if you do shoot fast, don't leave a round in the chamber.

May 23, 2019, 07:08 AM	#11
Mobuck Junior member Join Date: February 2, 2010 Posts: 6,846	I shoot steel case ammo in AR's (5.45 & 7.62) x39. I don't do "mag dumps" and I don't use them as a "bullet hose". Steel case ammo has not caused any problems beyond being marginally accurate EXCEPT FOR HORNADY which is quite accurate. I do have a Mini-Mauser in 7.62 that simply won't work with steel cases. Something about the geometry of the rim and the stiffness of the extractor(rifle is basically new) prevents the use of steel cases in this rifle. The reports of cases "sticking" in AR's didn't happen during firing. This happened when a HOT rifle was left with a round chambered. The case coating melted in the HOT chamber and then congealed, gluing the case in place. First off: don't shoot so fast. Secondly: if you do shoot fast, don't leave a round in the chamber.