Mike's Reloading Bench

Engineered Solutions
for today's reloader

Primer SystemTalk Continued

Mechanical problems

1. Burrs, flashing etc. Check the entire primer system for any burrs or small pieces of plastic flashing left over from the molding process that would inhibit the smooth flow of the primers through the trough assembly. Also inspect the slider, slider arm and trough cover and take whatever steps necessary to put them in good working order.

2. Check to see if the primer trough fits snugly into the socket in the carrier. If the trough flops around in the socket it can be tightened up with the addition of a small piece of tape affixed to the back side of the portion of the trough that fits into the carrier socket. This will also help to keep the trough from leaning away from the press when the primer tray is full of primers.

3. Check the clearance between the slider arm and the case retainer. The slider arm should pass over the case retainer screw without contacting it. If it does not it can be raised by the addition of a small cut washer between it and the body of the primer trough. Also lube the o-ring and adjust the attachment screw to prevent any binding inhibiting the free movement of the arm.

4. I have found that the primer pin spring is about 3/16" longer than it needs to be and because of this it is easily bent and will cause problems. Easily cut with a small wire cutting pliers.

5.The primer pin rocker arm is a die cut part and as such does not have smooth, square surfaces for the primer pin or the primer depth setting bolt to contact. If you have the tools at your disposal to be able to smooth and square up these surfaces it surely can't hurt anything. Be advised that the rocker arm is hardened and a file won't get the job done. You will need a Dremel with a stone or some sort of sander to get it done.

6. Primer depth adjustment bolt. Remove the grade markings from the top of the 1/4-20 depth adjustment bolt to aid in obtaining smooth and precise primer depth adjustments.