The Original CZ Forum

GENERAL => Ammunition, questions, and handloading techniques => Topic started by: Clint007 on December 28, 2019, 07:42:17 PM

Title: Power factor
Post by: Clint007 on December 28, 2019, 07:42:17 PM

Ok this is not quite directly a ammo isssue but it is indirectly so AND I really wanted the wisdom of this forum....

How can one tell that a recoil spring is too light for a given load?

Clint

Title: Re: Power factor
Post by: Bossgobbler on December 28, 2019, 07:59:25 PM

Read this. https://cajungunworks.com/how-to-select-the-proper-recoil-spring/ (https://cajungunworks.com/how-to-select-the-proper-recoil-spring/)

Title: Re: Power factor
Post by: Clint007 on December 31, 2019, 08:47:22 AM

Thank you that was educational....

Title: Re: Power factor
Post by: Dan_69GTX on January 02, 2020, 01:34:38 PM

I notice that Wolf sells variable springs.  I'm guessing the ejection distance is still a good guide for such a spring?

Title: Re: Power factor
Post by: Clint007 on January 04, 2020, 12:18:15 PM

I noticed that my IDPA loads were still generating a bit of end recoil wobble. It manifested as a slight up down oscillation of the front of the pistol and when I went down to an 11 lb spring it is still there but improved compared to the 13 lb spring. This is on a 5” M&P 2.0 by the way not a CZ.  So far every 130 PF round has cycled properly.  The brass throw  is a bit variable in the distance but it’s mixed brass and the M&P has always been that way. It’s a crappy plastic pistol after all.  I had ordered the 13 lb spring on advice from others with this gun, they said the 11lb was too light, but so far I have no issues