As for the breech face, I've fought with Ruger and I've been through three SR1911's, each with the exact mis-machined breech. They eventually told me to leave them alone and that this is what they call 'spec'.Ok...managed to take some pictures...
View attachment 183286
Here's the mark on the hammer:
View attachment 183288
And the uneven cut on the breech face:
View attachment 183287
LOL!!If having an uneven breech face is acceptable by your standards...
Ruger uses a MIM hammer, thumb safety, grip safety, sights, ejector, link, slide stop, sear and disconnector in their 1911s. Aside from the cast frame, they say no other "cast" parts in the guns.
The two "gouges" shown are voids from the MIM process. They shouldn't be there, but they're cosmetic & shouldn't affect longterm function.
Denis