Finding the optimal spring can be trial and error. Each pound change in the recoil spring will change the ejection distance 1. To get this distance into the preferred 6 — 8 foot range, you would need to use either a 13 recoil spring ejection distance would be 8. Either would work fine. Item 4: if your CZ has the correct recoil spring to match the pressure of your load, then mis-feeds, jams, and improper feeding are virtually eliminated.
With the correct recoil spring installed, the main issue will be reduced to the magazines or the ammo. You select the recoil spring based on the operating pressure of the load. A grain bullet can produce a much higher operating pressure than a or grain bullet, with the powder charge being the determining factor.
However, bullet weight can definitely affect operating pressure, if the same powder charge is used. For example, it obviously absorbs the recoil, but it also puts the slide back into battery as it reciprocates. If it starts to lose its ability to cycle the firearm properly, it can cause malfunctions.
A telltale sign of a recoil spring starting to wear out are consistent failure to eject or failure to feed malfunctions on your firearm that otherwise used to work fine. What could be happening without you knowing?
For a relatively cheap cost here at Brownells or somewhere else, you can ensure that your gun is running like a top for many years to come. All of the following links will bring you to the corresponding recoil spring for your gun to buy at Brownells.
If your gun has different generations, like Glock, make sure you verify that the right generation is linked to before you buy. Glock Gen 5. Glock Browning Hi Power. Springfield XDM. Springfield XDM I don't seem to keep my pistols long enough for it to really matter but this ensures that the frame doesn't get battered at all.
Using a light recoil spring will cause the gun to dip less when going forward into battery. You want this for obvious reasons, but a light recoil spring may batter the gun when the slide is allowed to recoil too fast backward and is stopped only when the front of the frame rails and the end of the rail slots in the slide crash into each other because the too light recoil spring cannot slow the slide enough during it's backward movement.
This is obviously a bad thing. The backward movement of the slide during recoil has to reset the hammer and in doing so has to overcome the main spring. If you are using a 17 main spring and then install an 18 main spring the slide has to overcome the additional spring resistance before reaching the end of it's travel. Now a lighter recoil spring can be used. With the lighter recoil spring there is less muzzle dip when the slide goes back into battery. If the gun has a very good, crisp trigger a heavier main spring should add a couple of ounces to the trigger pull weight for each additional pound of the main spring.
The only way to find what is best for you is to experiment with various recoil springs and mainsprings. Don't get me started on what different radius's on the bottom of the firing pin stop will do to recoil management. Hello: What about the radius on the firing pin stop. I would try different recoil springs with double taps at 7 yards as fast as you can pull the trigger. Purely mechanical type shots with very quick splits.
Aim the first shot I use a black paster then see if the second shot is high or low. You can try this at 3 yards also. This is just testing so you may have to go up one spring weight to get reliable feeding. Thanks, Eric. Why you picking on men of the cloth? All Activity Home Technical Gun Springs What's the theory behind changing recoil springs to different weig What's the theory behind changing recoil springs to different weig. Start new topic. Recommended Posts. Posted July 15, So what happens to the gun as the recoil spring is changed?
Or, is it just a matter of personal preference and feel? Thanks in advance for the info. Spring strength affects the firing cycle timing, and one of the most important events is cartridge pick-up time.
Slide timing must permit the next round in the magazine to be pushed up in time so that it is in the right position to be engaged by the slide for feeding. Generally, there is wide latitude for the ammunition that will reliably operate with a given recoil spring. For example, nearly all factory ammunition will run reliably with "standard" weight recoil springs in most pistols.
Also, all of the ammunition in this test cycled reliably with no malfunctions of any kind. Even the reduced power load functioned reliably with the strong 20 lb spring. Sometimes there are good reasons to change recoil springs, for light or heavy loads or to change how the nose of the gun dips for quicker follow-up shots.
In these instances, it's good to know how different spring weights can affect firing cycle timing. Too bad. It delivers. Find out how to load the 9x23 Winchester. What's the Best Cartridge for Coyote Hunting? Most fast varmint-type cartridges work just fine, but there are a few that excel. What cartridge would you choose for a dedicated predator-hunting cartridge? Read the full article here. How to Reload 7. Find out how to reload 7.
Handloading the 6. The 6. Learn how to handload the 6. Essential Reloading Tools Reloading tools are a lot like kitchen appliances; there are a lot that make life easier, but only a few that are absolutely necessary. Find the best reloading tools. The 9mm Automatic The 9mm Automatic solves the common issue of cartridge taper in the 9mm Luger.
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