
6
7.2
Adjust the Co-Ax Press
7.21
Primer Seater Assembly (See Figure 7.)
Based on the primer diameter being used, select either the
Small Primer Seater Assembly or the Large Primer Seater
Assembly (see Figure 7) and screw it into the Co-Ax Press.
Figure 7. Primer Seater Assembly Versions
Small Primer Seater
Assembly
(-101)
.175"
Diameter
Large Primer Seater
Assembly
(-102)
.210"
Diameter
7.22
Top Shell Holder Jaws (See Figure 8.)
Based on the thickness of the case rim being used, ensure
all three ends of the Top Shell Holder Jaws are matched and
aligned, and held loosely face down on the Shell Holder Jaw
Block (-017). Note the stamped circle that indicates which
ends are aligned.
Figure 8. Top Shell Holder Jaws (-016)
0.054” Ends
0.072” Ends
.054"
.072"
Stamped
Circle
Top Shell Holder Jaws in Place and Ready to Be
Tightened
7.23
Locator
1. Match the Locator end to the primer diameter being
used. (See Figure 9.)
Figure 9. Locator (-018)
.175" Diameter
.210" Diameter
2. Lower the Co-Ax Press Handle until there is enough
room to insert the Locator up into the Top Shell Holder
Jaw Block (-017) from underneath.
3. Center an unprimed case on the Locator.
4. While holding the locator in place, adjust the three Top
Shell Holder Jaws inward onto the case rim and tighten
the three Socket Head Cap Screws (SCR10-
24X1/2SHEADCAP) around the case. Do not
overtighten. (See Figure 10.)
Figure 10. Locator in Use
5. Lower the Co-Ax Press handle and remove the Locator.
You are now ready to prime. If the case rim is either too
loose or too tight, try using the opposite end of the Top
Shell Holder Jaws.