I am not 100% sure what you are asking.
The Mags will generally not drop free from the pistol when you hit the mag release. This is caused by the mag safety putting pressure on the mag.
You can get a bushing to remove the mag safety, it makes the mags drop free, it eases field strip by not needing to keep inserting the mag to pull the trigger at certain steps, and it can/might make trigger pull better.
With a loaded mag, hitting the bolt stop should drop the bolt and load a round. Pulling on the bolt and releasing when it it locked back will allow the bolt stop to drop and the bolt will close.
Only the Mkiii does this, the 22/45 will not allow the bolt stop to drop by pulling the bolt to the rear, you need to hit the stop to drop the bolt when reloading.