I just wanted to ask some advice my load plans since I like all of my fingers and its my first set of 9mm loads in addition to using plated bullets.
The charge:
Berry's recommends using low to mid jacketed data. I plan on using Bullseye, the sierra TMJ data calls for 4.2-4.4 grs. I figure I will keep it 4.0-4.4 grs.
OAL:
This is the part I'm a bit confused about. I know that if you seat 9mm too deep you will get pressure problems. How sensitive is this? The Speer manual lists the COAL for a 115gr RN a
t 1.135", but I also measured a factory RN round that was loaded at 1.154". I loaded up some dummy rounds from 1.169 (What Speer claims is the max COAL) to 1.130" with a crimp from a Lee FCD. I dropped them all in my barrel and they stopped at the same place and all fell out easily enough so they shouldn't have been hitting the rifling. Right now I'm planning to load them to 1.150" just to be a bit on the safe side and closer to a factory load.
I'm also using some military cases that have already been cleaned, deprimed and have had the primer crimp removed if that affects things at all. There are some other mixed headstamps but a lot of WCC.
If anything jumps out to anyone let me know. Primarily just the charge for the jacketed data and the seating depth.
Sorry for such a long post just want to make sure I'm getting everything right for the first time out with these loads.
The charge:
Berry's recommends using low to mid jacketed data. I plan on using Bullseye, the sierra TMJ data calls for 4.2-4.4 grs. I figure I will keep it 4.0-4.4 grs.
OAL:
This is the part I'm a bit confused about. I know that if you seat 9mm too deep you will get pressure problems. How sensitive is this? The Speer manual lists the COAL for a 115gr RN a
t 1.135", but I also measured a factory RN round that was loaded at 1.154". I loaded up some dummy rounds from 1.169 (What Speer claims is the max COAL) to 1.130" with a crimp from a Lee FCD. I dropped them all in my barrel and they stopped at the same place and all fell out easily enough so they shouldn't have been hitting the rifling. Right now I'm planning to load them to 1.150" just to be a bit on the safe side and closer to a factory load.
I'm also using some military cases that have already been cleaned, deprimed and have had the primer crimp removed if that affects things at all. There are some other mixed headstamps but a lot of WCC.
If anything jumps out to anyone let me know. Primarily just the charge for the jacketed data and the seating depth.
Sorry for such a long post just want to make sure I'm getting everything right for the first time out with these loads.