Enjoy your new press! As I say often you get what you pay for and your paying for a lot of speed.
Thanks, Thomas. It's going to be a totally different paradigm for me. I used to sit at my Rockchucker for hours, going over each shell and making sure each one was absolutely perfect. I'd even hand trickle each powder charge! I'm hoping that I'll be able to setup the 1050 to give OCD perfection to every cartridge.
As far as the shell plate "Bounce" is concerned, I understand the issue and had some powder spill out when I first got my press. Having said that, I never bothered with changing anything. I just got in the habit of holding my finger over the top of the case as it travels between my powder check station and bullet seating station. It completely fixes the problem for me.
I also don't believe that the plate ever flexes enough to require any kind of modification as long as it is tightened properly and the set screw underneath the carrier is cinched up to keep it from moving. I don't believe aging makes them flex more either.
I think it far more likely that inconsistent primer depths are a result of simply not cycling the handle completely. I had this issue when I got my first progressive press. I would kind of get in my flow and would occasionally short stroke the press.
I'm sure you already know this, but just in case.. On the 1050, the primer is seated on the down stroke. Apparently, several issues can come into play to cause primers to be seated to various depths. Everything from press age and wear level, lubrication, shell plate tension, and the position of the Sun and Venus can cause primers to be seated to varying depths. The hold down die I listed can help eliminate most of those potential gotchas, keeping the shell plate in exactly the same place every time the primer is seated. And it's a cheap little piece of insurance, so what the heck.
Have you seen the aftermarket primer pocket swaging attachments for the 650, by chance? Are you shooting any calibers with the potential for crimped primer pockets, and if so... how are you doing your swaging right now? I'm currently using an RCBS die that goes on the Rockchucker, and have been very unhappy with it.
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