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CZ PISTOL CLUBS => CZ75, 75b, 75 SAO inc the Transitional => Topic started by: parastoo on November 11, 2022, 07:01:23 AM

Title: Two recoil spring questions
Post by: parastoo on November 11, 2022, 07:01:23 AM
Hi,
     Is there any way to determine the  recoil spring weight that's installed in your pistol if it's the spring that came with the pistol and not installed by you? Length? Wire diameter?
      And does recoil spring weight contribute to muzzle flip severity?
Thanks,
           Mark
Title: Re: Two recoil spring questions
Post by: Wobbly on November 11, 2022, 08:19:59 AM
And does recoil spring weight contribute to muzzle flip severity?


Muzzle flip is a torque created by the the axis of the barrel being above the axis of the forearm. It starts before the spring even gets involved.
Title: Re: Two recoil spring questions
Post by: Tok36 on November 11, 2022, 04:47:56 PM
   The recoil spring weight can influence the severity of muzzle dip when the slide returns to battery. The stronger the spring, the more force is applied to the slide closing.

   As far as measuring recoil spring weight. Not all recoil spring manufactures have concurrent spring weight assignments. I have seen a few people manufacture custom rigs for measuring recoil spring weight but they have all started by adopting one the manufactures weight assignments by testing that manufactures springs and then measuring other springs against them.
Title: Re: Two recoil spring questions
Post by: Wobbly on November 15, 2022, 08:06:38 AM
There is a lab measurement device used to measure spring weights. It's a movable platen with a pressure gauge attached, which presses downward on a fixed base. The problem is that you need a length dimension to work from. Springs have different pressures at different compression lengths. That may be where some of the confusion comes from.

https://content.speedwaymotors.com/ProductImages/5861000_L_c3882b19-b2e2-4ee4-886b-ec05b118df90.jpg
Title: Re: Two recoil spring questions
Post by: retteryer on November 27, 2022, 11:17:15 AM
Guys ,bicycle is already invented and you can have it for $42.

https://usa-shop.armanov.com/products/recoil-spring-tester
Title: Re: Two recoil spring questions
Post by: Tok36 on November 27, 2022, 12:22:54 PM
Guys ,bicycle is already invented and you can have it for $42.

https://usa-shop.armanov.com/products/recoil-spring-tester

Neat.
Title: Re: Two recoil spring questions
Post by: bonj on November 27, 2022, 05:13:05 PM
And does recoil spring weight contribute to muzzle flip severity?


Muzzle flip is a torque created by the the axis of the barrel being above the axis of the forearm. It starts before the spring even gets involved.

Good insight Wobbly! Thx for all of your expert contributions!
Title: Re: Two recoil spring questions
Post by: retteryer on November 27, 2022, 10:49:11 PM
And does recoil spring weight contribute to muzzle flip severity?


Muzzle flip is a torque created by the the axis of the barrel being above the axis of the forearm. It starts before the spring even gets involved.

Recoil is there even if your barrel axis is inline with the axis of the firearm.What you describe is how recoil is felt by human.
Title: Re: Two recoil spring questions
Post by: jimfou812 on December 30, 2022, 05:31:26 PM
Scroll to bottom

https://pistolwizard.com/guides/recoil-spring