Dama

That can be caused by low pressures, but not always. Some of our practice ammo does that consistently, but it's not really a problem. If you want to see if it will go away with a bit more pressure, add powder (you're below book max by half a grain now). Don't change the OAL if the gun is running reliably. It's not a reliable way to increase or decrease pressure set amounts. Set the OAL on what fits in the magazines, what feeds in the gun, and what isn't shorter than the loading guide you're using shows for that bullet/powder combo. R, Thank you for your comment and that makes sense. I'll add 0.2 gr or so and test at the range.

Hi everyone. Today I shot one batch of 9mm that I reloaded recently and noticed some of the brasses are covered (almost top half of the case) with black powder residue (?) after being fired. I believe this is a sign that the pressure is low, but not quite sure. My load data is as follows, but does anyone have any suggestion? - Ramshot Sihouette 5.5 gr, CCI #500, 115 gr FMJ/RN, COL: 1.155" If it's caused by low pressure, I was thinking of decreasing the COL slightly say from 1.155" to 1.150". I just started reloading and any comment or suggestion will be appreciated. Thank you!!

Thanks everyone for your response!! Really appreciate it.

Not sure what the rating is, but it's the standard factory stock. Thanks for the info!! I think I'll go with 5.5 gr for now and test at the range.

Hi everyone. I just started reloading (9mm) and tried my first batch at the range last week. The issue I had was that the slide didn't lock after the last round is fired. This happened a few times. The gun (XDm 9mm) has never had this issue before with factory ammo. Here is my load data: Ramshot Sihouette 5.3 gr, 115 FMJ/RN, CCI #500 small primer, OAL: 1.155" I was guessing the load was too soft and thinking of testing another batch with 5.5 gr or so. I'd appreciate it if you have any suggestion or comment. Thank you!!