[Baronet]

Below you will see copy of Hughes Ammo ad on an ammunition site. What caught my attention first was 124gr since I use that in my G26, then I saw "CARBINE ONLY" which gave me pause. Description says it has hard primers, so be wary of light strikes etc. Okay, fine, got it.

Personally, I feel my Glocks will do fine with hard primers. That opinion is solely based on the depth of dents in primers of handgun ammo that I have used. I could be wrong so fishing for input from others.
I also have a Kel-Tec sub2000 in 9mm and a JR 9mm AR-15 variant. Truthfully I am less confident about the PCCs than my Glocks. Again, hoping to get experienced opinions.

DESCRIPTION

Hughes Ammo
9MM Luger CARBINE ONLY
FMJ
124 Grain
Brass with Brass plated Projectile
Target and Range Ammo
NOTE: This product has hard primers. If you have a firearm with a light hammer/striker, you may experience light primer strikes. Ideally suited for PCC’s.

 

[bubbatime]

Some carbine ammo was loaded very very hot for the Uzi. The manufacturer did not want you to load it in pistols.

 

[Baronet]

Some carbine ammo was loaded very very hot for the Uzi. The manufacturer did not want you to load it in pistols.

Very true, however the description on this product says it's the hard primer not the load. In the past I have seen ammo boxes marked for Uzi or as ++P.

 

[Schrag4]

Probably rifle primers, which are way harder. I have at least one handgun that will not set off rifle primers. Maybe yours will, but if it doesn’t? Hope you have a PCC to shoot them in. ETA: I see you do have at least a couple PCCs, so what do you have to lose?

 

[Rotn1]

The manufacturer knows what they have / made. The are not doing it for you they are doing it because they know what will happen and they are looking to avoid problems.
When I buy 9MM I want it to function in all my 9MM weapons
Pass.

 

[sciolist]

Yes, you could be wrong.

 

[BDM71]

Below you will see copy of Hughes Ammo ad on an ammunition site. What caught my attention first was 124gr since I use that in my G26, then I saw "CARBINE ONLY" which gave me pause. Description says it has hard primers, so be wary of light strikes etc. Okay, fine, got it.

Personally, I feel my Glocks will do fine with hard primers. That opinion is solely based on the depth of dents in primers of handgun ammo that I have used. I could be wrong so fishing for input from others.
I also have a Kel-Tec sub2000 in 9mm and a JR 9mm AR-15 variant. Truthfully I am less confident about the PCCs than my Glocks. Again, hoping to get experienced opinions.

I was hoping this was going to be about bullet velocity. For example, Underwood uses different 9mm bullets for their 9mm and .357 SIG XD cartridges even though they are both .355" diameters. The reason being is that they need deeper flutes to stop the much faster .357 SIG bullet (to avoid over penetration). Well, when you fire a 9mm bullet out of a 16" barrel you essentially raise it to .357 SIG velocities, so a bullet like a 9mm XD specifically for carbines makes sense. Unfortunately it pertains to primers like you mentioned.

 

[Cliff Z]

I am hoping someone can post information on recommended 9mm PCC ammo that would be proper for a 16" barrel. I know some propellants burn too fast and the longer barrels start to slow down the rounds before they exit the barrels. That defeats the benefit of the longer barrels in a PCC.

 

[bfoosh006]

I am hoping someone can post information on recommended 9mm PCC ammo that would be proper for a 16" barrel. I know some propellants burn too fast and the longer barrels start to slow down the rounds before they exit the barrels. That defeats the benefit of the longer barrels in a PCC.

16" 9x19 AR15 Carbine Chrono Test.... 129 OEM rds ( 52 more added May 7th ) - Page 1 - AR15.COM

I didn't see much slowing down of any 9MM ammo... but bullet set back can happen. Setback wise...My 9MM Colt pattern didn't like any of the Sig V-Crown bullets ( YMMV ) , any Alum. cased ammo, and the coated Fed. bullets could setback as well.

 

[MedicineBow]

I am hoping someone can post information on recommended 9mm PCC ammo that would be proper for a 16" barrel.

I think that depends on what you are planning to shoot with it and what kind of performance you would like to get from it in terms of penetration and expansion.

 

[Cliff Z]

I do not think you understood my post. Knowing that many propellants run out of steam prior to the projectile exiting some longer barrels, and actually causing the projectile to slow down. I am interested knowing many of the recommended rounds that actually benefit from a 16" barrel.

 

[Steve Urquell]

I do not think you understood my post. Knowing that many propellants run out of steam prior to the projectile exiting some longer barrels, and actually causing the projectile to slow down. I am interested knowing many of the recommended rounds that actually benefit from a 16" barrel.

It's impossible to know unless the ammo mfg lists powder burn rates or powders used and they don't. Reloading is easy. Slower burn rate powders will give more velocity in the longer bbl. Looking at BBTI shows most loads aren't really slowing down much if at all by 16" but aren't really gaining much after 12".

BBTI - Ballistics by the Inch :: 9mm Luger Results

(statement of intent)

www.ballisticsbytheinch.com

 

[Cliff Z]

People, you are reading into this too much. Many of us here have their own Chronographs and frequently test ammo and even doo YouTube videos on ammo performance on various calibers and combinations. I was kind of hoping someone that had some performance results would chime in.

 

[eman2016]

I do not think you are actually losing much velocity at 16 inches in most cases. IT's just that depending on the round, above a certain barrel length the gains get incrementally smaller and you see diminishing returns, maybe with the barrel drag remaining constant as the powder burns off being a factor. Depending on the round, the RATE of increase may peak at anywhere from 5 to 12 inches and then increases become smaller with each inch above that. It's still going faster out of a 16 inch barrel by a few hundred feet per second than out of a pistol barrel. But the best compromise between optimal velocity gains and the drawbacks of a longer barrel came before that 16 inches.

If you look at these charts, it's at the 17 or 18 inch mark where you actually start to see the velocity noticeably level out and drop. Maybe for some rounds a very miniscule drop, like low teens, happens from inch 15 to inch 16.

BBTI - Ballistics by the Inch :: 9mm Luger Results

If you're really that focused on squeezing optimal velocity out of a 16 inch barrel I'd have to ask exactly how much more you need, what for, and why you wouldn't just get a 556 gun at that point.

 

[shoresroad]

I am hoping someone can post information on recommended 9mm PCC ammo that would be proper for a 16" barrel. I know some propellants burn too fast and the longer barrels start to slow down the rounds before they exit the barrels. That defeats the benefit of the longer barrels in a PCC.

Here is some information on two rounds I tested in my Ruger PC Carbine today using my CE ProChrono digital chronograph...

Underwood 9mm +P 147 grain XTP: 1251 fps average velocity for 5 shots (rated at 1125 fps by Underwood)

Winchester Ranger 9mm +P+ 127 grain RA9TA: 1385 fps average velocity for 5 shots (rated at 1250 fps by Winchester)

 

[Jcujog]

Having shot some of these rounds in a handgun. It's literally just a primer issue. Inconsistent firing with bone stock glock 19, psa dagger, g48. Yet to try in my browning hi power.

 

[harleypower69]

147 gr for my HK, B&T and Mini Uzi. Not messing with anything else.