help with reload info for 9mm

[mikeinla]

I am using.....
X-treme bullets copper plated 9mm-115gr.
Federal small pistol primers
Winchester AutoComp
Used Federal 9mm brass

Loading 5.1 gr. of AutoComp I am getting a velocity of 1100
1.124" OAL

I am getting black powder marks on my brass and was told I needed to used more powder to get higher pressure.
What velocity should 9mm be?? I was first told to try to stay around 1050.

At 5.1 gr. the firearm cycles and runs fine but should I reload with more powder??

BTW, This is the first time reloading 9mm

[bigdawg86]

Eh just shoot it

All my reloads do that, even at max load. Some powders are dirtier than others so it may be related to that as well.

[MR_X]

I get this also when loading Longshot. No biggie. It can mean that you might need more pressure to seal the chamber but not necessarily. I thought the same thing when starting with Longshot but even near max still get it.

What does the reloading data say for max?

[mikeinla]

Eh just shoot it

All my reloads do that, even at max load. Some powders are dirtier than others so it may be related to that as well.

I called Winchester and THEY told me I need to load more powder. They said the reason is does that is because there is not enough pressure with that amount of powder. Winchester said AutoComp is not a dirty powder.

[Kmai24]

Don't get too high on your velocity, I believe berry's suggest to not go over 1200fps..as bigdawg86 stated above, different powders shoot dirtier than others. Besides that's why we tumble. Enjoy shooting and safe loading.

[Fishslayer]

At 5.1 gr. the firearm cycles and runs fine but should I reload with more powder??

BTW, This is the first time reloading 9mm

How does it shoot? Accurate & consistent? I wouldn't worry about it. My low pressure range fodder gets those black marks all the time.

If you're not getting good shooting results maybe futz around a bit. 9mm is more sensitive to changes in COAL and crimp than larger cases like .45ACP. Sometimes a small change can make a real difference.

[Blademan21]

What does you reloading manual say?

[h.charlie]

Your in the mid range powder charge for autocomp you can also try longer oal as max case length is 1.169 I do believe get it closer to the lands will give you a higher pressure as the bullet wont have as much space to build up momentum before hitting resistance, not sure hope someone chimes in on this thought as I'm new to pistol reloading

[mulyhuntr]

I wouldn't worry about it. The only calibers I don't get this with are stout 10mm, 357, and 44 mag loads.

[bigdawg86]

I called Winchester and THEY told me I need to load more powder. They said the reason is does that is because there is not enough pressure with that amount of powder. Winchester said AutoComp is not a dirty powder.

So you spoke directly to Winchester, the powder manufacturer. They told you what the problem was and how to fix it, and then you go to Calguns to ask the same question and start typing in CAPS when you get information that is different from what you were already told?

If your worried about it, get a chrono and a reloading manual, work up the load as per what the manufacturer suggested.

[ivanimal]

My rule of thumb is always load to the middle of the load scale. It allows for a safety net if other factors increase pressure. If I dont like the results I change the powder not the load.