Ok - I am "this close" (fingers held about 1mm apart) to buying a G20SF. Since I don't currenlty reload, I have never picked up my brass (40S&W for the most part). I also read many years ago that I should not reload brass that has been fired from a Glock since the chamber does not fully support the cartridge and it is weakened after shooting. Not sure if that is an accurate statement or not, but since I did not reload, I never did a lot of research on that assertion. Fast forward many years - welcome to the 10mm world to me! I have accepted the fact that I will start reloading again (last time I reloaded was 22+ years ago) - namely because of this 10mm round. I like everything I read about 10mm and am having a hard time talking myself out of it. However, I read recently that the Glock 10mm barrels have the same cartidge support issues that the 40S&W has - thus, is it safe/recommended to reload brass once shot through a Glock? Are there additional pressure considerations that need to be accommodated because we are shooting Glocks??? I don't see anyone on GT talking about it so I am guessing (hoping) this is a non-issue or folklore. Just trying to get all my facts together before I commit to this new caliber. Thanks in advance for all your help!!!!