OK another 50 rounds today have not cleaned it for 200 rounds, this last 50 rounds it failed to lock back on the empty magazine 3 times out of 5 10 shot strings, could be the way I was holding it as it felt different today, but I will clean it and keep shooting it. I had a single failure to close completely at 180 rounds the first outing, so it may need to be cleaned every 200 rounds. I was not shooting very good today at all, don't know why, S &B don't know the grain of the ammo. My friends at Lightning strike are considering making a non MIM striker for it, anyone that wants a tool steel striker should contact and advocate for it. Lighting strike

As you can see by the attached picture my gun is producing the swipes across the primers as well. The gun has 480 rounds fired in it.

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