I too picked up an RL 1050 that had been dormant for a very long time and had quite a time setting it up. I wanted to chuck it out a window many times. I tore everything down as far as I could and to make a long story short, I used 600 grit diamond polish in the primer slide assembly so it slid effortlessly. I used the same material in the primer punch as that was sticky as well. That helped immensely but not perfectly. I replaced all the springs on the machine and literally, all my headaches vanished. It's an absolute pleasure to use the equipment now. Hindsight, I wish I had sent it back in to Dillon for refurbishing as I'm sure it would have saved me a lot of frustration. I did learn a lot from the experience though!