I just purchased a 19/23 kit for my Gen3 G19. The majority of the rounds are getting stuck in the chamber. I am using CCI 40 Grain Mini mags per the suggested ammo. What I notice happening is the ammo is very loose when you insert a fresh round. But when the firing pin strikes the casing, it swages out the bottom of the round where it strikes, making that area of the now empty casing bigger, thus it now becomes tight in the barrel. I have not been able to get more than 3 rounds off at a time and the majority of the time it is only 1 round before I have to manually eject it with the brass cleaning rod. I notice on my 9mm barrel that there is a big chamfer (corner break) on the end of the barrel where the casing enters the barrel. On my conversion kit barrel there is a very very small corner break if any. I have a machinist's background and I think that a larger corner break on the casing end of the barrel would help.. I also see an indentation right above the barrel where the firing pin has struck, possibly from dry firing? (I have done it minimally) I wonder also if just making a bigger chamfer right where the firing pin strikes the barrel would alleviate this issue. Another thing I thought of was machining a small shallow notch to the inside of the barrel from the outside where the "gripper" is supposed to grab onto the lip of the now used casing to eject it. There really is not correct clearance in my mind for the gripper to fully grab the used casing. There is a 45 degree ramped notch there to allow the gripper to get close to the casing but I think a small channel into the bore from here would help it grab the spent casing easier. I am very frustrated as I just bought this and have not been able to enjoy it like I should. Anyone have any input or personal experiences with this? Please advise. Thanks.