Comments on: Outstanding Primer Seating Tool from 21st Century Shooting

By: Rick Curtis

Rick Curtis — Wed, 09 Jan 2013 21:17:01 +0000

Is going from large to the small priming ram the same as a Sinclair?

By: Editor

Editor — Wed, 09 Jan 2013 04:44:21 +0000

I talked to John who runs 21st Century. He explained that some top Benchrest guys use his priming tool for a final “Precision Primer Seat”. They’ll initially “rapid-prime” all their cases with a multi-primer tool with a primer tray, seating the primers just flush with the case head. Then they will use the 21st Century tool to do the final “deep-seat” to a precise insertion depth. This system offers the “best of both worlds”, i.e. rapid priming AND precision primer depth control with perfect “feel”.

By: Mr Bill

Mr Bill — Wed, 09 Jan 2013 01:47:34 +0000

I have a question about seating depth reference: to what part of the cartridge is seating depth indicated? Is there something on all cartridges that is a constant, or is a setup measurement taken before seating depth is set? I’m not sure what dimension exactly the same on all cartridges. I use the K&M which measures the depth of the primer pocket before zeroing the depth gauge. It’s not pretty like this one but it does seat primers to a known depth each time, it just takes a few more steps for each primer. If this seater will do that without all the added steps I’m definitely interested!

By: Chuck

Chuck — Tue, 08 Jan 2013 19:33:57 +0000

“For those guys who like to prime one-by-one……”

Methinks those guys must have never used a tray-fed priming tool.

By: Jake

Jake — Tue, 08 Jan 2013 09:49:07 +0000

For the same price you can have 2 (small and large) RCBS universal primers and not have to touch the primers. I’ve been using these for over 30 years with no problems or failures at all. This looks like an expensive answer to an unasked question.

Editor: Jake, I own and use an RCBS Universal primer tool (the one with spring-loaded jaws and APS strip loader). It works and is pretty darn reliable (so long as you load the strip right). However, it lacks “feel” and requires a surprising amount of hand-squeeze force to seat the primers correctly. I sometimes use a two-hand grip to get the final bit of “crunch”.

By contrast, the 21st Century tool seats with an easy thumb push on the handle — I’d say it’s roughly 1/3 the force my RCBS tool requires — as the result of better linkage design and geometry. Additionally, you have a very sensitive “feel” for setting the primer. You also, importantly, have an actual mechanical control over primer seating depth. And, compared to the Sinclair BR priming tool the 21st Center is way, way easier to change from PPC to BR cases. For those guys who like to prime one-by-one, this truly is the “Rolls-Royce” of tools, based on my personal experience. For someone with poor hand strength (or perhaps arthritis), this tool makes life easier. I do agree that tools that have boxes or strips allow you to avoid handling a primer before seating. For that reason I recommend folks clean their hands (or use rubber gloves) before using a single-primer tool like this.

By: Dr. Edwin Tostenrud

Dr. Edwin Tostenrud — Fri, 25 May 2012 09:03:11 +0000

When are you going to make (pistol caliber) shell holders? Like 9mm, 38/357, 44 spec/mag, 45ACP? One thing I do not like about the Sinclair is that you have to insert a single primer at a time getting primer dust on your hands and introducing dirt and oil onto the primer itself??
Please respond I’d appreciate it!
Sincerely,

Dr. Edwin Tostenrud

By: Fred Garvin

Fred Garvin — Tue, 14 Feb 2012 15:15:57 +0000

The set screw (Sinclair) I don’t like is the one that must be removed to change the ram size. I don’t like thread locking it because I need to change it often but it will never stay set without it. It’s a pain.

By: Irv

Irv — Tue, 14 Feb 2012 11:10:39 +0000

Solution to the set screws (Sinclair tool)- just buy a shell holder and head for each case head size you shoot. For most of use it would me maybe two or three.

By: mike

mike — Mon, 13 Feb 2012 17:53:24 +0000

What are the adjustments taken to?
plug to Casehead? plug to Pocket? Primer to either?
Is the adjustment a stop, which prevents over-crush?

By: Jed

Jed — Mon, 13 Feb 2012 16:56:12 +0000

. . .”upon reflection, make the tool look smaller than it is, because of the size of my hands.” Thats what I always tell my GF but she dosen’t buy it.

Editor: LOL. Maybe that’s why my brother advised me to “date girls with small hands.”