TargetTalk

I've had a 1050 since 1989 after competing at the Bianchi Cup.
As all wheel gun shooters would agree, misfires are the main downfall in a match.
The 1050 has a huge advantage over all other presses in that all operations are done on the down stroke and the primer seating depth is easily adjusted with the pin in the tool head which passed through the shell plate to push the shuttle bar down and the priming stem up.
However there is still the problem of the shell plate flexing while this is happening. Clearly this needed to be eliminated.
There is a blank hole above the priming station, so I found a suitable thread size which happened to be 3/8 BSPT x 19 TPI. I tapped the black hole out being very careful to set the tool head up in the mill vice dead square.
I then turned up a hollow die long enough to pass through the tool head and be screwed down to contact the shell plate at the bottom of the stroke. No more shell plate flexing as the primer is seated. The primer depth can be adjusted to be just below the case head the same for every round.
Once your revolver hammer tension is adjusted to this new and absolutely consistent primer depth the misfires will be a thing of the past. You will also be able to lighten off your hammer which should have a lock screw to stop it unwinding [which it will].
I notified Dillon of this modification, alas no reply, go figure!.

I'VE BEEN LOADING ON A RL1050 FOR APP. 25 YEARS. YES I SHOOT PPC . I NEVER HAD A PROBLEM WITH LIGHT HITS. I ADJUSTED THE PRIMER SEATING DEPTH AS DESIGNED BY DILLON . BETWEEN THE SIZING DIE AND SWAGING STATION ON THE TOOL HEAD IS THE ROD THAT PUSHES ON THE PRIMING ARM. BY SCREWING IT DOWN FROM THE TOP WITH AN ALLEN KEY YOU CAN ADJUST THE PRIMER SEATING DEPTH TOP COMPENSATE FOR THE FLEX.

I TOO HAVE GIVEN DILLON IDEAS. THE RHEOSTAT ON THE PRIMER FILLER WAS ME. I HAD A HIGH SCHOOL ELECTRONICS CLASS FIX ONE UP FOR ME. AT THE SHOTSHOW I TOLD THEM ABOUT IT AND SHOWED THEM PICS . 8 MONTHS LATER IT WAS STANDARD.

I ALSO HAD TALLER LOCATOR PINS MADE WITH GROOVES THAT FROM THE SIDE THAT LOOKED LIKE A HALF OF A FIGURE 8. I USED IT WITH MY GIRLS ELASTIC PONYTAIL HOLDERS. STRETCHERED FROM THE LOCATOR PIN AT THE SEATING DIE TO THE PIN AT POWDER CHECK STATION. A 2ND 1 FROM THE POWDER DROP LOCATOR PIN TO THE POWDER CHECK PIN. THIS APPLIES CONSTANT PRESSURE ON THE CASE SO THE POWDER ON SMALL CASES DON'T GET THROWN AROUND. I DID IT THE KEEP THE 9MM POWDER MORE CONSISTENT, NO POWDER SPILLING. SHOWED THAT TO THEM ALSO THEY LOOKED AT ME LIKE I HAD 3 GREEN HEADS. THEY STATED THERE WAS NO POWDER SPILLING PROBLEM THAT THEY KNEW OF. BUT A MARK 7 AUTO DRIVE ELIMINATED THE NEED FOR THE PINS. YOU CAN ADJUST THE INDEXING SPEED UNIT .