How to make your RCBS Case Prepartion Center a Powered Case Trimmer

B

Bigdog2

New member
The RCBS Case Preparation Center does almost everything in helping you get your cases ready, and it certainly takes all the sore hands out of the job. But the one thing it hasn't done till now, is to trim the case to a proper and consistant length.

The inexpensive,
 
Last edited:
Very cool. Thanks for the pic. I thought of doing something like that before, but never really thought it through.....
 
Great idea, but I guess I'm a little 'thick' tonight... What are you using as a 'stop' to keep from trimming off too much?
It seems like you need a pre-determined length of trim, otherwise you could ruin a lot of cases.
 
OT, There is a rod that goes through the case and bottoms out against it(connected to the cutter end). It is already pre measured to the proper case lenght. I had one years ago. Kinda neat.

In Christ,

Song Dog
 
Thanks guys---
that's one of reasons why this tool combination works so well--- you get consistant case lengths without having to measure. Since you only trim resized and deprimed cases, and since the Lee case length gauge bottoms out on the the lock stud when the length gauge goes through the primer hole, it holds the case straight to the cutter and never needs to be measured. And when powered by the RCBS Prep Center, you can do all your case prep work done at one time with a controllable rotational speed. I don't know how many blisters I've gotton from my other case trimmers, whether Forster or RCBS, and I don't have to pull out and set up another tool.

My local machine shop charged me $20, a deal, to do two of these, one for me and one for a friend. If Lee will start addding just the threaded hole in the bottom of the cutter, it probably would be cheaper. A 1/2" 8x24 set screw only cost $0.30
 
This is a great idea that I first saw at Marlin Owners posted by VTDW a couple months ago, but here's a couple details that will help anyone interested in making this conversion, the Trim mate uses standard 8-32 threaded accessories, not 8-24, I don't think there is such a thread size even, so don't spend time looking for it. /ubbthreads/images/graemlins/smiliesmack.gif

The Lee cutter can be annealed so it can be drilled and tapped, just be sure to use a heat sink to keep from heating the cutting end, I used a 6" vise to hold the cutter with just the part past the knurling of the cutter exposed, heat just the very end to cherry red and allow it to cool naturally, then it can be drilled with standard #29 drill bit to accept an 8-32 tap. Annealling will discolor the tool some but it will still work fine. /ubbthreads/images/graemlins/grinning-smiley-003.gif
 
Blinddog, it sound that your not a Lee fan either, but their case trimmer is simple, cheap, effective, the right size to adapt for this use, and very available.

Wrongtarget, you may be right about the threads but mine works fine with 8x24
 
Like I said, there's no such thread in a #8, 24 TPI starts at #10. There's no such tap to thread it to 8-24 either, you're using an 8-32 or it wouldn't work in the Trim Mate, it has the same thread as most cleaning rods, try a cleaning jag or brush in the Trim Mate or one of the Trim Mate tools in a cleaning rod, you'll see they're the same. /ubbthreads/images/graemlins/grinning-smiley-003.gif

http://www.csgnetwork.com/screwnummachtable.html

http://smg.photobucket.com/albums/v354/v...nt=HPIM0179.flv

http://www.marlinowners.com/board/viewtopic.php?t=27212
Quote:
="VTDW"Annealing = cutting torch flame to the base until very dull orange with the cutter edge under water. Leave in water until cool.

Drill #30 IIRC

Tap = 8-32unc

An awesome tool. RCBS didn't allow for a trimmer because they sell a very expensive one :!:

Welcome to our forum and you be tha firstust to call me a geenyus. /ubbthreads/images/graemlins/wink.gif

Dave 8)


 


Write your reply...
Back
Top