Does make you scratch your head, doesn't it? I have seen that too many times.
Generally, testing out of one chamber is a good thing for Contender shooters, but if you are using a revolver, whatever the ammunition, it has to work in all six chambers to make me happy. To get a good idea of what my ammunition is really doing, I try to fire six rounds, four times. I usually try to do it on four different days.
Of course, if you have more than one gun...
The condition of your brass makes a lot of difference in how your loads clock. Being cheap, I hate buying new brass until my old batch starts splitting.
