I made my first batch of 9mm rounds and test fired the starting load yesterday. They seemed to work ok. Cycled the gun ok, one FTE out of 50 rounds. But I noticed the slide did not lock back as usual when the mag was empty. I figure this is too light a load.
Hodgdon and Speer data I'm using is 124gr FMJ, universal powder 3.8 - 4.4 gr (33,500PSI), 904-1045 FPS. Given the starting load is a bit weak. I've worked up loads 1/10th gr apart to 4.4
My question is, should I just stop firing as soon as the slide starts locking back? Or, should I continue and fire all of them, just to see what happens? Being a bit new, I don't want to push things unnecessarily. I think the MP Shield 2 9 is not rated for +P so not as much cushion.
Hodgdon and Speer data I'm using is 124gr FMJ, universal powder 3.8 - 4.4 gr (33,500PSI), 904-1045 FPS. Given the starting load is a bit weak. I've worked up loads 1/10th gr apart to 4.4
My question is, should I just stop firing as soon as the slide starts locking back? Or, should I continue and fire all of them, just to see what happens? Being a bit new, I don't want to push things unnecessarily. I think the MP Shield 2 9 is not rated for +P so not as much cushion.