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FoghornLeghorn · February 11, 2013, 02:33 PM

I took two 1911s to the range today. One was a heavily modified Mark 4/series 70 that was customized by Clark Custom Guns.

The other is a Colt Combat Commander.

I fired 200 grain SWC bullets. Some with 5 grains Unique. Some 6 grains. And also some WWW 230 grain factory ammo.

The Mark 4 did fine.

The Commander had frequent jams. Some on the feed ramp. A couple of stovepipes.

I even used the mag out of the Mark 4, and it still jammed.

Suggestions? It's mostly a stock gun. The only thing I did was to put an ambi safety on it.

Would polishing the feed ramp help?

February 11, 2013, 02:33 PM	#1
FoghornLeghorn Senior Member Join Date: September 2, 2011 Posts: 961	My Commander is jamming I took two 1911s to the range today. One was a heavily modified Mark 4/series 70 that was customized by Clark Custom Guns. The other is a Colt Combat Commander. I fired 200 grain SWC bullets. Some with 5 grains Unique. Some 6 grains. And also some WWW 230 grain factory ammo. The Mark 4 did fine. The Commander had frequent jams. Some on the feed ramp. A couple of stovepipes. I even used the mag out of the Mark 4, and it still jammed. Suggestions? It's mostly a stock gun. The only thing I did was to put an ambi safety on it. Would polishing the feed ramp help?