I'm trying a new powder and not having luck with the factory load in my SW M&P 9Pro.
125 gr J&K lead bullet. 3.8 grains of Universal powder with an OAL of 1.13X
These cartridges will not cycle the gun correctly. Almost every one is an FTE.
Do I increase the powder? Shorten the OAL?
Thanks
B
125 gr J&K lead bullet. 3.8 grains of Universal powder with an OAL of 1.13X
These cartridges will not cycle the gun correctly. Almost every one is an FTE.
Do I increase the powder? Shorten the OAL?
Thanks
B