New to reloading on Dillon SDB 9mm press. Few questions

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mtlsportshooter

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So. Here goes. Got the rig, set it up, and managed to adjust everything. Here's the setup.

9mm
147gr Campro RNFP FCP
CCI SPP
Tiregroup

So. Campro site gives the following load data.

3.2-3.6gn
1.06 COL

I had very little difficulty hitting 3.4 and 1.06. My question is why are all other 9mm loading at around 1.10? I assume that's the max length, and I dropped my round into my barrel and it fit no problem, fits well in mag as well. I am wondering if the OAL of 1.06 will create too much pressure.

On a completely different note, my bullet now looks oddly shaped. As I seated the bullet deeper and deeper until hitting 1.06, it seemed to create a bulge in the casing that was no longer uniform from top to bottom. Factory crimp was fine, but I can still see a very slight hourglass effect. Does this on all rounds.
 
I checked the Hodgdon site and they also show 3.2 to 3.6 grains of Titegroup.
They show an AOL of 1.100.
The 147 grain is a long bullet that goes deep in the case and the 9mm is a tapered case
so a bit of a bulge is normal IMO.
My preference would be to increase the AOL from 1.060 up a bit but should not be an issue at 1.060.
 
The coke bottle shape is normal. Your 3.4 grain loading is quite light so it's unlikely that you will have pressure issues at 1.06" OAL. That said, monitor your first rounds for pressure signs. I would try seating longer and checking to see if the rounds fit in your pistol's chamber i.e. The plunk test. You may see greater accuracy from seating closer to the lands.
 
Wow. Thanks for the input guys. I'll run 20 like this and pull it out to say 1.08 for another 20 and see how I it feels. I also plan on trying something closer to 3.6 to see how it feels, although that's at the top end, and I was looking for something with less recoil.
 
Also, some of my rounds come out with the primer being slightly less than flush. I seat it back in position on the press and give it a little bit of pressure to make it flush, but just curious as to the overall effect of a slightly I flush primer.

Thanks,
 
mtlsportshooter said:
Also, some of my rounds come out with the primer being slightly less than flush. I seat it back in position on the press and give it a little bit of pressure to make it flush, but just curious as to the overall effect of a slightly I flush primer.

Thanks,
Click to expand...

High primers can result in failures to feed and there is a very small chance of out-of-battery ignition (if the forward action of the slide crushes the primer just right).

Be careful of reseating the primer on a loaded round. As I'm sure you are aware, there is a risk of ignition which would be very bad. Maybe best to pull those rounds, reseat the primers and complete loading.
 
mtlsportshooter said:
Also, some of my rounds come out with the primer being slightly less than flush. I seat it back in position on the press and give it a little bit of pressure to make it flush, but just curious as to the overall effect of a slightly I flush primer.

Thanks,
Click to expand...

In my experience, primers not being seated properly will cause misfire, i.e. failure to fire, because when the firing pin strikes the primer, it will just seat the primer deeper.

I also use a square deal. What I do to make sure primers are seated deep, is to push the lever twice firmly with both hands. It's a little bit slower this way, but I had no seating problem anymore since I started doing this.

Hope this helps!
 
My current production load for my Shadow is Campro 147's over 3.2gn of Titegroup with Dominion SRP and an OAL of 1.115. This load created right about 130PF and was accurate and runs well in my Shadow. Most high primers for me result in a fail to fire and they usually go bang on the second pull. I don't use both hands like rising_sun but if I didn't like the feel of the seating I will give it another bump before pulling the handle back down to make sure it's seated.
 
Ok. Well I only got that 1 primer that didn't sit quite as right as the rest. I'll throw it in as the last round in my mag to see what the result is. As for the OAL you guys are using that's amazing to see the range you can get away with. I'm curious as to what the difference between 3.2 and 3.4 is terms of recoil. Thinking I may throw together a few more rounds today at 3.2 just to see the difference.
 
Thanks guys. Went yesterday and fired off around 80 rounds of my first batch. Everything went really smooth. I felt a slight difference in pop from the factory rounds, but not a huge difference from 3.2 to 3.4. I guess that I won't get any less pop from any other powder. Trying to get it to the point where I can have some rounds for my 10 yr old to fire by herself, but I am thinking that a .22 pistol may be the only option for now.
 
I load 147 gr campros at 1.12 for my shadowline and glock, no feed or any other issues. I actually had it loaded to 1.14 and ran fine, but brought it back cause people borrow rounds sometimes and I keep it universal.
 
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