Author Topic: How to properly "SPRING" a EAA Witness  (Read 47309 times)

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Offline bnolsen

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Re: How to properly "SPRING" a EAA Witness
« Reply #75 on: June 27, 2017, 07:16:40 PM »
Here to resurrect a zombie thread.  I have a 10mm full and compact witnesses, both full steel wonderfinish, the compact is dated 2002, the full size 2003.

I had bought 22# wolf recoil spring kits and stiffer hammer springs (thankfully I still have all the packaging for the springs).  I also had bought .40 barrels for both.  I may have also bought a pair of mag packaging though.

The full sized?  Runs reliably with 10mm with 22# spring and new firing pin spring.  I don't really feed the need to run the 40 barrel.  I don't recall this having a recoil buffer.

The compact?  I had left a 40 barrel in it.  It's not very reliable, lots of feeding issues.  I honestly can't tell which spring is the wolff and which is factory.  Also the recoil buffer is pretty much shot.

Today I received a pair of henning rods and a single recoil buffer from him.  I hope the full sized still runs reliably with the new rod, I'll have to test it.

I think I'd be happy getting the compact running with the .40 barrel so I can use it for carry.  Suggestion on what spring I should use with the henning?  16# ?

I think first I'll try it with the 10mm barrel back in and drop the mostly shredded factory buffer (it won't lock back with this buffer either).

Oh yeah here's an obligatory picture:

Offline bobclevenger

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Re: How to properly "SPRING" a EAA Witness
« Reply #76 on: June 28, 2017, 05:13:37 AM »
The Compact guns can be a problem to make them reliable --- sometimes. Sometimes they just run without any particular special attention. Kind of like full-size 1911s and "chopped" 1911s (shorter than Commander-length barrels).

My own Witness Semi-Compact started out as a 10mm Wonder finish Compact. It was an early gun. I seem to recall buying it new in the 1990s. It never had any kind of a buffer from the factory. I did use a Shok-Buff designed for a CZ-75 for a while and it seemed to help prevent the slide from hammering the frame, but as you have observed, these buffers do not last long. I recently (in the last year or so) installed a "DPM Recoil Reducer" unit to accomplish the same goal. It works rather well with a variety of ammo. I am using one of the recoil springs that came with the DPM unit (along with the two captive springs that are a part of the unit). The main problem I have observed with just using a heavier recoil spring is that with the reduced gripping area that results from the slide-in-frame design, the slide can be very difficult to rack for those of us with old (or otherwise weak) hands with recoil springs of 22 lbs. and higher. The DPM unit seems to have dealt with this to a degree that works for me.

Don't know if any of this helps you or not, but please keep us informed -- even zombie threads need some love now and then. :o

Offline bnolsen

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Re: How to properly "SPRING" a EAA Witness
« Reply #77 on: June 28, 2017, 04:53:56 PM »
Because of how much 10mm beats these things up I'm resigned to making this work with the 40 barrel.  It may be that I just need to get a weaker spring to make this reliable with 40.  I figure it doesn't hurt to beat it up with a few mags of 10mm just to see if its reliable as is with those 10mm loads and work from there.  I need to make a trip to lowes to grab a few thin brass washers and see which size will work.  The henning washer is incredibly thick, and hopefully okay with my full sized frame.

Update (Jun 29): took both out to the range to shoot today along with a couple of other pistols.  Used henning rod without a buffer and the 22# spring in the large frame.  I had one single FTF on the large frame, the nose dove and jammed at round 9 (of 15).  I guess an issue with a dirty mag I should clean and lube.

The smaller one?  I put in the henning without a buffer.  The 7th round of 10mm blew the mag floor plate...the case ruptured.  Looking at the fired rounds all the primer strikes before were off center.  Switched barrel back to .40, ran 3 mags of 40 without any problems with the remaining mag.

Now where to find a mag base plate??

Update (Jul 2): stole a mag base plate from one of my full size mags, shot it today.  The compact has run 100 rds of winchester ,40 with the henning, 22# spring and a #10s (or was that #14s?) dremmeled brass washer from Home Depot without problems.  Just inspected the brass washer and its almost toast already, wow.
« Last Edit: July 02, 2017, 08:02:21 PM by bnolsen »