So they were took out and reloaded for whatever reason. The FACT is they were there 30 shells left when there should have been 25. I can speculate as to why they were reloaded until the cows come home, but it is irrelevant to the point.
For what reason? If one of them was on the kitchen surface, they were probably all on the kitchen surface to begin with, and four of them were used in the shooting.
It's not irrelevant. You want to know where there were five extra bullets, and here we have five bullets which were in the magazine, and then removed from the magazine. You don't think there's a connection?
Is it not likely that the bullets were removed from the magazine from the last time it was used? Where would someone put those five bullets?