Brass ejection force

[bigbearbear]

While at the range, I noticed that some semi-autos throw their brass a long distance away. I didn't get a good luck at what kind it was, but the pistol was throwing the brass at a distance of 3 lanes or more.

Is this common?

My Beretta Px4 doesn't seems to do that. I've had my wife take video of me shooting the brass ejection seems pretty gentle compared to some I've seen at the range.

Are there semi-auto handguns known to throw brass a very long distance?

[Barang]

I think within 3 feet is normal, for 6 feet and over is odd.

[ironhorse1]

It depends on the strength of the recoil spring.

As an example I have a RIA 45 with the stock #16 recoil spring it would throw cases across several lanes.

I increased the spring to #18.5 and the cases were closer.

I tried a #22 spring and cases were thrown just behind my lane.

It also depends on the load. Full power loads tend to eject cases further.

Target loads and lighter bullets closer. Springs and loads can be matched for best performance.

I believe it is best to match the load to to strongest spring that will still allow positive ejection of the fired case.

The right spring weight, in an auto, will still let a case eject, but return the gun to battery quickly, for the next shot.

irh

[Off the Roster]

my .40 cal cz 75 does that. gonna have the pin filed down a tad.

[beanz2]

Yes, you can tell good ammo from cheaper ones as cheaper ones land close to your feet and hotter ones land a good 7-10 feet away.

When my wife's HK P30L 9mm was brand new, it would get FTEs all the time with BVAC's reloads and Blazer brass ammo, on every other shot it seemed like. Then I read up on the boards then realized the gun likes hotter ammo for the first 500 or so rounds. At the time NATO-load Winchesters were still selling for 24 cents per round so we loaded up on those for her gun. The FTEs stopped completely and the brass ejected in large, beautiful arcs behind her. Soon, the recoil spring loosened up and now we were able to use most ammo, but you can still see how hot the ammo is by how far the brass ejects.

['ol shooter]

I can tell when my Gold Cup is due for a new spring, because the cases fly further away. A properly tensioned spring will eject the case a couple feet, any more and you are unnecessarily beating the barrel hood on the frame. Different loadings may require a stronger or weaker spring, that is why 1911 springs come in differing weights.

[bigbearbear]

Thanks for the info, I didn't know about the relationship between the spring and how hot the round is loaded for. This also explains why the Beretta Px4 Storm has such a gentle ejection arc with its brass, the recoil spring is pretty stiff as my gun is pretty new (4th time out at range, 650 rounds fired).


You learn new things everyday here!

[Freq18Hz]

The stronger and more even the ejection pattern, the better.


-Freq