Help me interpret ejects please.

[MikeLW]

On my first few hundred of Hornady 124 FMJ (last week) I really didn't pay attention to the ejected casings.

I'm new and I wonder what I saw on a quick trip to the range today. 

9mm Hornady 124 FMJ RN, 3.8 Tightgroup, 1.15 OAL, 1X Blazer Brass w/ CCI Primer- These landed  4-5 feet @ 3:00- 3:30.

9mm Rainier 115 Plated RN, 4.1 Titegroup, 1.15 OAL, 2X Blazer Brass w/ Federal Primer- These landed 4-5 feet @ 4:00-4:30

The new 115 bullets with more powder seemed a little too hot (recoil wise) and I'll at least try less powder next time. They reminded me of the first time I bought Winchester 124 nato or the first time I shot a 40S&W.

Thanks

[ThompsonCustom]

Well your actually under the start load data for the 115gr load not that it's a issue.

Hodgdon list the starting load for the 115gr at 4.5gr with a OAL of 1.125 and for the 124gr bullet it's 3.6gr at 1.150 OAL.

The recoil impulse is different between light and heavy bullets most people explain it as the heavier bullets felling like they push while the light ones fell snappier.

[Wobbly]

Sorry, not enough information.

Ejection distances are a simple way to quantify loads, but only if you have the information about the pistol. I assume you're talking about a 9mm, but which one? And what is the recoil spring weight?

This is why we have This Thread.

 

[IDescribe]

If the pistol is cycling reliably, what difference does it make how far the brass are ejecting? 

[painter]

If the pistol is cycling reliably, what difference does it make how far the brass are ejecting? 

I've had load/spring combinations that would drop the brass into my shirt...reliably.

It made a big difference when the burning stopped.

[Wobbly]

I've had load/spring combinations that would drop the brass into my shirt...reliably.

Painter -
That's funny!

During my last ladder I lost track of 4 cases. Didn't see them anywhere. Then I bent over and they rolled out of the brim of my big sun hat.

[IDescribe]

My ex-wife's first shot ever with a firearm, the pistol ejected the case right into her cleavage.  She was dancing around trying to fish out the hot brass with her weak hand, sweeping the line with her strong hand, and I'm shouting "Muzzle down range!  Muzzle down range!l

[MikeLW]

Ya'll made my question thread fun, Thanks! I feel better now after a long day at work and a laugh.

I apologize for the lack of info and I'll throw that in in a bit when I wind down. I forgot about that, and I was so proud when I copy / pasted that info in my hello intro to this section of the forum.

It did cycle fine and I was delighted, but as a new reloader I was also intrigued by the feedback I saw on the ground and wondered if it was telling me something.

[MikeLW]

Firearm
? My CZ pistol/rifle model is: a full-size steel 75 clone (Tristar S120)
? The caliber of my CZ is:  [9x19 Luger]
? My CZ has the following changes: The Tristar has a CZ 75 rear sight and CZ rubber grips.
? I use this CZ in the following ways: Bullseyes and steel for fun and working with my wife and grown kids.
? I want ammo accurate at:  15 - 25 yards / paces.

Components
? I've been reloading for months/years: 2 months

9mm Hornady 124 FMJ RN, 3.8 Tightgroup, 1.15 OAL, 1X Blazer Brass w/ CCI Primer

9mm Rainier 115 Plated RN, 4.1 Titegroup, 1.15 OAL, 2X Blazer Brass w/ Federal Primer

Reloading Equipment
? Press brand and type: RCBS Single Rock Chucker Supreme
? Dies: RCBS 3-Die Carbide
? Scale: RCBS Single Beam
? Powder Measure: RCBS Uniflow
? Do you have access to a chronograph ?  No

Problem Area
? A detailed explanation of the problem you're experiencing. Please try to be concise:

9mm Hornady 124 FMJ RN, 3.8 Tightgroup, 1.15 OAL, 1X Blazer Brass w/ CCI Primer- These landed  4-5 feet @ 3:00- 3:30.

9mm Rainier 115 Plated RN, 4.1 Titegroup, 1.15 OAL, 2X Blazer Brass w/ Federal Primer- These landed 4-5 feet @ 4:00-4:30

[Bret]

If the pistol is cycling reliably, what difference does it make how far the brass are ejecting?

You can cause premature wear or beat a reliable pistol to pieces if it's cycling too fast.  The same is true for overgassed semiautos.  Brass ejecting really far might not mean that the load is too hot.  It could be caused by a worn recoil or hammer spring.  I think it's a good idea to compare to known good quality factory ammo when making determinations.

[Wobbly]

Firearm
? My CZ pistol/rifle model is: a full-size steel 75 clone (Tristar S120)
? The caliber of my CZ is:  [9x19 Luger]
? My CZ has the following changes: The Tristar has a CZ 75 rear sight and CZ rubber grips.
? I use this CZ in the following ways: Bullseyes and steel for fun and working with my wife and grown kids.
? I want ammo accurate at:  15 - 25 yards / paces.

Components
? I've been reloading for months/years: 2 months

9mm Hornady 124 FMJ RN, 3.8 Tightgroup, 1.15 OAL, 1X Blazer Brass w/ CCI Primer

9mm Rainier 115 Plated RN, 4.1 Titegroup, 1.15 OAL, 2X Blazer Brass w/ Federal Primer

Reloading Equipment
? Press brand and type: RCBS Single Rock Chucker Supreme
? Dies: RCBS 3-Die Carbide
? Scale: RCBS Single Beam
? Powder Measure: RCBS Uniflow
? Do you have access to a chronograph ?  No

Problem Area
? A detailed explanation of the problem you're experiencing. Please try to be concise:

9mm Hornady 124 FMJ RN, 3.8 Tightgroup, 1.15 OAL, 1X Blazer Brass w/ CCI Primer- These landed  4-5 feet @ 3:00- 3:30.

9mm Rainier 115 Plated RN, 4.1 Titegroup, 1.15 OAL, 2X Blazer Brass w/ Federal Primer- These landed 4-5 feet @ 4:00-4:30

Mike -
We want to help you here, but the distance the cases are thrown is dependent upon the power of the load versus the spring setup (recoil + hammer), and we are simply unfamiliar with the TriStar spring setup.

It sounds like you're happy with the performance of the cartridges the way they are. If you call TriStar and ask them what the stock recoil spring strength is, then you can call Wolfe Spring and ask for -2 lbs and -4lbs spring kits. (So for instance if they say "22 lbs", then you order a 20 lb and an 18 lb spring set.) Follow ??

That will place your brass 4-5ft away and then the gun will be tuned to the cartridge. Your wife will appreciate the lower force slide too.

Hope this helps. 

[2bfree]

Consider yourself lucky. My 75 D PCR ejects the brass 10/15 ft at about 3:30. It has done this since new. Was going to try another spring but depending on who I asked the factory spring is ether a 12/14/16/18 #so I just gave up. 

[Bret]

2bfree, my experience is that the factory springs have varied over the years anyway, so the official value doesn't really matter.  Just buy a calibration pack from gunsprings.com and find what works best for you.

[copemech]

Those are not high power loads, so the distance sounds about right to me. Try some Win white box 115 ball, as it is speced at 1190 fps and came in at about 1150 on my chrono. All these guns were built around Nato spec ammo, which is hotter.

[1SOW]

I.D.  re hot brass in you wife's blouse:

From CGW: 

How to select the proper recoil spring

The recoil spring is one of the most critical springs in a semi-auto pistol, yet most shooters install the wrong spring the vast majority if the time.  To understand the recoil springs function, we need to examine what it does and how it works.

The recoil spring performs 5 tasks, all of which are critical for reliable function:

Controls the velocity of the slide when cycling
Allows the slide to achieve a full rearward stroke
Ejects the spent case the correct distance from the ejection port
Picks up and feeds the next cartridge
Positively locks the slide into battery
Item #1:  the optimal slide velocity will eject a spent case, on average, 6 ? 8 feet away from the shooters stance.  This is the ideal slide velocity for reliable extraction, ejection, and subsequent feeding.  Pistols that eject a case 12 feet or more will prematurely break a slide stop, can produce excessive muzzle rise or lift, and can increase felt recoil.  The majority of the time folks follow the bad advice given on YouTube videos and on the internet telling folks to use a 10 or 11# recoil spring, which is incorrect unless you are using very light loads

The rest can be read here:  https://cajungunworks.com/technical-support/