Does 10mm Launch Brass?

[bluetopper]

Been tossing around the decision for a few years of getting a 10mm but I've never shot one or even been around one while firing.

One of the things that has kept me from making my mind up to get one is I always figured 10's would launch the expensive and hard to come by brass in to next week and losing a lot of them.

I guess I'm just too used to my 45's dropping brass at my feet.

 

[WaywardSon]

My Glock 20 pretty much flings them to you know where and gone I've considered a brass catcher...but have so far relied on making my kids find them

 

[stompah]

Load them down like a .40 and it will drop them a foot or two away. But then why buy a 10mm?

 

[Havok7416]

I intended to use nickel-plated brass to help find my 10mm brass for that very purpose until I got a good deal on some yellow Starline. Now I'll just have to crawl around on the floor I guess.

 

[geist262]

I don't fire a 10, but I lay a tarp down when firing semi autos.


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[critter]

I had a Colt Delta Elite in 10mm. You were LUCKY to find the brass in the same zip code!

 

[Clark]

Back in 1999 I wrote this:

Speed of shell ejection ..
1) For a semi-automatic case fired 5 feet form the floor, the time to
reach the floor is
t= square root ((2)distance / acceleration )= root (5'/32'/sec/sec)= .54
seconds

2) In a Colt .45 the ejector contacts the case when the slide is back
1.3". The farthest the slide can travel is 1.8" where it hits a stop. If
the spring is perfectly sized for the gun and the round, then the slide
will just run out of energy at the stop. Assume Vslide = 0 at 1.8".

3) Energy Slide at 1.3 inches = (force) (distance)= (16lb
spring)(1.8-1.3=.5")=.66 foot pounds of kinetic energy left in slide
when it hits the case

4) Energy is also = 1/2 mass velocity squared = .5 (mass of slide=
weight
of slide/ grav accel=12 oz/32 ft/sec/sec)(V squared)

5) Combining equations 3) and 4): Vslide at 1.3" = square
root(E/(.5mass)) = root(.66 ft lb/((.5)(.023 lb sec sec /ft)) = 7.6
feet/sec

6)Center of gravity [this should be moment of inertia, but that would be
work] is .25" from extractor claw and ejector hits the
case at .35" from the extractor claw.
Velocity of case = (.25"/.35") velocity of slide at 1.3" = (.25/.35)7.6
feet/sec = 5.4 feet per sec [here's your answer] = 3.6 miles per hour

7) Combining 1) and 6): Distance case travels=
(Velocity)(time)=(5.4ft/sec)(.54 sec)=2.9 feet horizontally from the
gun
And Wolff FAQ wants your empties to land from 3 to 6 feet. They must
want the slide to barely hit the stop.
http://www.gunsprings.com/1ndex.html
Clark

That link is dead now, but the principals have remained the same. The big variables are:
1) Momentum of the projectile and gas
2) Mass of the slide
3) Recoil spring force

 

[david_r]

I suspect it is gun dependent more so than the round. I don't think I've seen a Glock in any caliber that doesn't launch two projectiles for each pull of the trigger. I think it's intentional. Gaston designed it so you wouldn't have a concern of slipping on brass in a firefight. Heck, the first piece of brass probably won't hit the ground before the fight is over

A heavier recoil spring in any gun should slow the slide which should reduce the distance the brass is thrown.

 

[mtrmn]

I have nickel cases for my 38 super---they reflect their surroundings and are even HARDER to find in grass. They may be easier if you go back at night with a flashlight and watch for reflections of your light.....

 

[Peter M. Eick]

Yes.

Get a good backstop or brass catcher. My goal is to just knock it down from low earth orbit.

 

[Clark]

I have increased and decreased slide mass, by you won't.

You can change loads and recoil springs.

You want the brass to land 5' away.

You are smart enough to get it done.

 

[GJgo]

The only 10mm I have that doesn't put my brass in orbit is my 610!

 

[gamestalker]

Much of it depends on how stout you load them. But i general, yes, the 10mm is a capable of tossing them quite a distance with typical loads.

GS

 

[Peter M. Eick]

Never thought about my 610. Great gun but I don't shoot it enough.

 

[ZeSpectre]

I have a witness 10mm that launched brass into orbit, then it would burn up on re-entry until it was a piece of .40 S&W brass. I'm not exaggerating to say that a friend of mine watched the brass fly once, marked it, and then measured that it was 16 YARDS away from me.

Eventually I tweaked the ejector and things got better but it's still in the trebuchet category for launching brass.

 

[HighExpert]

I made a screen by using two 2x4s 4ft long with a hole in each end. Clamp the 2x4 to a table and insert 4 telescoping tent poles and use ground cloth material with 4 grommets to go on top the tent poles. Leave extra cloth to drape the ground on right side. Shells hit either the top or side and fall at your feet. Sounds complicated but takes 5 minutes at most to set up.

 

[wally]

I don't fire a 10, but I lay a tarp down when firing semi autos.

A 30'x40' tarp wouldn't quite be adequate for any of my full power 10mm pistols

Where I shoot, 20+ feet gets you into brier rabbit territory where recovery is pretty hopeless. So mostly I shoot the 200gr 10mm Blazer which generally ends up cheaper than reloads + lost brass.

 

[Dakotared]

I too have a 10 witness and yes it tosses the brass a good 15 yards. I got a brass catcher that attaches to the rail and that catches 95% of the brass and the other 5% hits the catcher and falls right down by my feet.

 

[Lennyjoe]

It's all about the recoil spring. I had to go to a 24lb spring on my 1006 to keep them in this county. I used a few different springs for my G20 and Witness 10mm's too til I got it to where the brass only went about 6-8 ft without cycling issues.

 

[Buck13]

I made a brass catcher out of a wire coat hanger, some elastic strip and an cut-off pant leg. It collects 80-90% of the stuff. Most of the rest bounces off the rim and ends up in retrievable territory. Still, I'm losing enough that I wish I had bought more when that was easy.

Having it on your hand is a bit distracting, but tolerable for just standing at a range bench. I bought a $20 Chinese laser sight that (not too surprisingly) doesn't hold a zero if you just wave it around a bit, let alone shoot it, so I may drill a couple of holes through that POS and use it as a mount on the rail for another catcher.

 

[MachIVshooter]

I have five 10mm handguns:

-Kimber Stainless Target II
-S&W 1006
-Glock 20
-Witness Compact
-Witness Limited

All of them throw brass 30-50 feet with full power loads.

 

[steve4102]

I have 3 10MM pistols.
My DW 1911 tosses brass about the same as my other 45 1911s. The ejector has been tweaked by an expert smith and all is well.

My RI 1911 is new, it came with a 14lb recoils spring. I swapped that out for a 22 lb spring and the brass stays nice and close.

My EAA Elite Match tossed brass into the next county, I had the ejector tweaked a little and now it tosses it about half that. Still to far, but a little more tweaking and It will be GTG as well.

 

[osage48]

I shoot a Colt Gold Cup and it throws 10mm brass farther than anything I have ever seen. I like the looks of the hand held catcher. Good idea!

 

[Mike 27]

My G20 flings em 20+ feet. When shooting at the indoor range I try to get the end lane neat the wall. If I can't get that lane they end up there anyway. Outside I just hope they land together and the brass buzzards don't get them before I do. 10mm is the hardest stuff to keep up with for me.

 

[Buck13]

I shoot a Colt Gold Cup and it throws 10mm brass farther than anything I have ever seen. I like the looks of the hand held catcher. Good idea!

I think you can buy a similar item, but my spousal critter has a fancy sewing machine, so it made more sense to just kludge it from stuff I found in my basement.