Increasing the primer depth on a XL650

[N7VY]

Greetings all,

I recently placed a post about if the Dillon 750 Improved the primer depth compared to the xl650 and found out no. DBlue responded to my thread and suggested that the primer plunger assembly be disassembled and removing material from the ram. This is due to the ram having a shoulder which will not allow the primer being pushed in any farther. I took the ram and placed it in a drill and used a rat tail file and removed material. I wasn’t able to measure how much due to the angle of the shoulder. After about 5 minutes I took the ram out of the drill and reassembled the primer punch assembly. I but it back into my press and tried to reseat my CCI small pistol primer. I could feel that the primer was seated well below the base of the brass so I was happy with the result. Here are some pictures of the before and after measurements. The measurements are taken at the top of the shell plate and how far the ram rises in the before and after the modification.

 

First picture is what DBlue posted and shows where the material needs to be removed from.

 

Second and third show a new small primer punch in place and show measurements

 

Fourth and fifth show results from removing material from the ram.

 

Again I want to reiterate that this idea came from DBlue and without his idea, I might me looking at a 1050 to help with my primer problem.

 

[mayassa]

Did you remove the entire shoulder or just remove material to push it back?

[N7VY]

I just removed a little. I wasn’t able to measure the amount due to the shoulder. The ram is almost even with the top of the shell plate.  Give it a try. 

[mayassa]

I will thanks

[Tom S.]

A rat tail is a round tapered file, hence the name. l would think a small triangular file would work best or perhaps a half round, using the flat side.