Author Topic: Flat Recoil Spring in the Witness 10MM?  (Read 2041 times)

Scarlett Pistol

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Re: Flat Recoil Spring in the Witness 10MM?
« Reply #15 on: October 15, 2017, 02:10:29 PM »
A flatwire spring of the same compressed length as a round wire spring will store more energy.  This provides additional dampening in the confined space of the recoil spring channel.  It also will have a longer service life.

Well, that solves that! Thank you!

StockIIBoss

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Re: Flat Recoil Spring in the Witness 10MM?
« Reply #16 on: October 15, 2017, 06:19:11 PM »
Before deciding to make the final modification, I tried some stiffer round wound springs from Wolff. They took an early set and extended barely beyond the length of the guide rod. I feel sure that EAA/Tanfo ran into the same thing, which is why they went with dual springs (to get the slide to go into battery). Round springs, such as theirs, can't compress as much before stacking, and in short order will take a set and become ineffective. The dual spring combination that the Witness compact has doesn't play well with each other and gets tangled up and damaged. However, I've only seen a few like that online, as well as mine, but it's pretty convincing. The flat wound spring hasn't taken much of a set and still extends far beyond the guide rod, and like sqlbullet stated, will have a much longer service life.

Now I want to get back to to range to shoot it some more!  8)
« Last Edit: October 15, 2017, 06:20:56 PM by StockIIBoss »

StockIIBoss

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Re: Flat Recoil Spring in the Witness 10MM?
« Reply #17 on: October 16, 2017, 02:45:44 PM »
Dangit! I couldn't get to the the range today. I forgot the home repair folks were scheduled for today to repair drywall issues (nail pops, separated tape, settling cracks, metal joint separation, etc). The 17 year old house looks awful with all the patching, but it needed to be done. They spent the entire day here making a mess, but the results look amazing. Now for the paint. Ugh.


There's always tomorrow for the range, right?  ;D

StockIIBoss

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Re: Flat Recoil Spring in the Witness 10MM?
« Reply #18 on: October 23, 2017, 03:11:23 PM »
Range day! Just took the modified Witness Polymer Compact 10mm and no other 10mm so I could stay focused on the mission to run lots of rounds through the one gun to test for reliability. It was a yes and no day.

I started of with two 50 round boxes of Armscor since they've always been reliable. As usual, there were no failures. I switched to a new round for me, called the Legend Basic 155 grain 10mm. It flies at 1300 fps and is a solid lead-free projectile. I'm not sure what the bullet material is made of, but it looks like lead to me. Anyway, it was pretty reliable, but had three FTF on the second round of every magazine. Plus the slide wasn't reacting as snappy as with the Armscor. Like the brakes were applied. Strange. Maybe I got the ramp and chamber a little dirty running the Armscor, which created resistance for the Legend. Dunno for sure. I think the next time I go to the range I'll start with the Legend ammo with a cleaned and oiled up gun to see how it reacts.

The Legend Basic ammo seemed to be more accurate than the Armscor, but both shot a little low at 15 yards. Could it be me? Nawww. I had some French red Bordeaux region wine to calm my nerves first!  :o 

So, bottom line is that the Witness Polymer Compact, even if modified to handle 10mm ammo with a flat recoil spring, is one awesome semi-automatic pistol.

« Last Edit: October 24, 2017, 08:01:51 AM by StockIIBoss »