New Hand Priming Tool Offers Adjustable Primer Seating Depth
John Perkins of 21st Century Shooting has created new, benchrest-grade hand priming tool that offers the ability to adjust primer seating depth. John is a skilled tool-maker and machinist who has designed reloading tools for major companies including Davidsons and Sinclair International. Guaranteed for life and beautifully constructed from anodized aluminum, the unit costs just $79.99 with five (5) precision brass shell-holders (Lee shellholders can be used as well). The current tool design employs Lee plastic primer trays, though billet aluminum trays will be offered in the future.
Adjustable Seating Depth and Great ‘Feel’
Brad told us: “With this new priming tool you can control, set, and adjust the seating depth of your primers. It was made adjustable because each person has a different idea about the [ideal primer seating depth]. Not only are you able to control the depth, but once you find the depth you are looking for, you lock down the adjustment and thereafter each primer is set at the same depth. So it’s a consistency thing as much or more than the seating depth. With a standard hand priming tool you are relying on feel each time, with no way to know exactly how deep you are seating them from round to round.”
Brad added: “One of the greatest things about this new tool is the quality feel of the tool while you are seating primers. I have handled almost every priming tool on the market and I have never found anything even close to this tool.”
The tool will come with five popular shell holders, including #2, #4, #5, M and PPC. Shellholders are made of brass and “fit much nicer” than the Lee shellholders, according to the tool’s designer. You can also use normal Lee shellholders.
You can order the priming tool directly from 21st Century Shooting, 260-273-9909. Price is $79.99 plus shipping. The tool comes complete with five shell-holders (#2, 4, 5, M, PPC) and allen wrench, but you will need to supply your own Lee plastic primer tray. 21st Century Shooting provides a 100% Money Back Guarantee.
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Seating primers to the same depth might hurt more than help. In fact, it could very well be that seating by feel produces better results.
I use the K&M indicated seater & seat to exact primer crush(3-5thou depending on brand). This does not correlate to ‘depth’ because pockets are different in depth, and/or primers are different in height. He K&M zero’s out both at once, and shows you real quick that you cannot arrive here by feel.
To my point, seating all primers to the same depth would all but guarantee different crushes.
And although I have no rules of thumb, I have found that crush and firing pin settings affect SD, and load potential, per brand/type of primer.
May I take exception with your comment. I think that after you reform and clean the primer pocket, you shouldn’t have a problem with crushed primers. Yes, each company has different size primers, but if you are using the same brand,you shouldn’t have any problem.
As long as the primer is securely seated, whether it is .003 or .007 it does not affect accuracy one iota.