Hornady LNL PTX problem solved


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Dynamite Rabbit
April 28, 2009, 10:57 PM
I've always had trouble with my powder-through-expander crunching the side of a few shells (I load .357 Mag.) -- sometimes one per hundred, sometimes more. The nylon tip on my RCBC powder lockout die was also randomly catching on the side of a shell here and there. This slowed me down a lot, because I had to visually check every case as it went over the PTX.

I tried adjusting the timing, chamfered and polished the PTX, called Hornady (they said they'd never heard of that problem) and generally messed around trying to find a solution. I finally decided that the case didn't seem to be held very tightly against the subplate by the shellholder -- most cases would rock back and forth a bit, so I took a chance and ordered another shellplate. I just received it after a long wait, and it totally solved the problem. Now the empties are a much tighter fit, and barely move. They're aligned much better with the PTX, and I don't think they'll ever get caught.

I haven't measured the difference in depth of the lip that holds the shell's rim, but it's not visually obvious -- I don't think it's more than a few thousandths. In any case, it's enough to hold the shell much more tightly, and it solved a problem that's been nagging at me since I bought the press last Fall.

Maybe this will help someone else out -- I have no idea how widespread this is.

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showmebob
April 28, 2009, 11:11 PM
Thanks for the tip. I have had ocassional problems with cases hitting the sided of the dies and have crushed a couple out of the 1200 or so I've loaded. I had noticed that the cases were "loose" fitting. My problem seemed to get better after replacing the spring. If it happens again, I will see if it is only happening with a particular shell plate.
I hope you let Hornady know this solution. They will likely reimburse you for the plate and keep this in mind if others have the same problem.
Thanks for sharing!!!

WV_Vizsla
April 29, 2009, 02:22 PM
Hornady folks are great service reps...
Maybe offer to send them that one in exchange for a different numbered plate that you need anyway.

I have not used that plate yet but it is on order.
What were your measurements?

As a SOP: Eyeball for burrs, file as needed. I have been polishing mine and friends on a large diameter, narrow pad buffering wheel, using compound. Less drag = smoother operation = SPEED

freakshow10mm
April 29, 2009, 02:26 PM
Or you can buy a better mousetrap.

http://www.lnlptx.com/

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