Hi. Got a new-to-me 27, and I have a question: The mags are std. 9-rounders. When I load the mag to capacity, it is quite difficult to seat the mag in the gun. Also, assuming the chamber is empty, it is also difficult to rack the slide on a full mag. Is this normal? The gun had about 2,000 through it from first owner, so should be broken in... Also: Is it ok to load Glocks from an open slide? i.e.; locking open slide and just dropping one in the tube. Or is it better to load from the mag? Thank you! Drjones Wanna kill these ads? We can help!