Whether using the small or large primer seating plug, I notice that shallow depressions are left in the primers when I use the Universal Hand Priming tool.
I've noticed this while installing primers in 30-06, 9mm, and now some 38-Special cases. I end up using the primer tool on a Rock Chucker single-stage to install the primers.
See the photo:
The top two cases' primers were installed using the primer tool on the Rock Chucker.
The bottom two cases were primed using the RCBS Universal Hand Priming tool. Notice the slight circular depressions. I'm using the small primer seating plug for the 38-Specials.
It's like the seating plug isn't centered on the primer when it pushes it in - although the setup is such that there isn't any slop in the seating plug and the guide. Or, it looks like the case bottom isn't seating all the way into the tool shell holder, yet I've checked that and all seems well.
Functionally and safety-wise, are the depressions a problem? They seem to be only .0001-.0002" deep - not very much at all.
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I've noticed this while installing primers in 30-06, 9mm, and now some 38-Special cases. I end up using the primer tool on a Rock Chucker single-stage to install the primers.
See the photo:
The top two cases' primers were installed using the primer tool on the Rock Chucker.
The bottom two cases were primed using the RCBS Universal Hand Priming tool. Notice the slight circular depressions. I'm using the small primer seating plug for the 38-Specials.
It's like the seating plug isn't centered on the primer when it pushes it in - although the setup is such that there isn't any slop in the seating plug and the guide. Or, it looks like the case bottom isn't seating all the way into the tool shell holder, yet I've checked that and all seems well.
Functionally and safety-wise, are the depressions a problem? They seem to be only .0001-.0002" deep - not very much at all.