9mm accuracy and power from a 16in barrel?

[Gunz]

Is there a significant difference vs. the standard 4-5 in pistol barrel? Does the extra barrel length offer a more complete powder burn? If so, is it better to use hotter loads in carbine length rifles for 9mm? Does Win 115gr whitebox have enough oomph to push through rifles like the UZI, Camp Carbine 9, and CX Storm?

 

[PO2Hammer]

There is not a lot of velocity gained from a 9mm in a carbine with its small charge of fast burning powder, mabey 10%. Cartridges like .357 magnum gain much more from a carbine. Accuracy can be quite good, I get about 2-1/2" at 50 yards with run of the mill fmj's. Quality hollowpoints are usually better. Win white box cycles my PC-9 just fine, it's my standard practice load. CCI blazers don't have the power to cycle mine reliably. Everything else has been 100% reliable. Don't use sub-gun ammo in any carbine unless it is specificly OK'd by the manufacturer, it's hotter than 9mm+p. If you are handloading, you can use the slower powders to boost velocity.

 

[Redlg155]

Don't use sub-gun ammo in any carbine unless it is specificly OK'd by the manufacturer, it's hotter than 9mm+p.

I've heard of warnings against using ammo such as the IMI black tip 9mm ammo in handguns, but never in a carbine. Carbines are built just as sturdy as any sub gun out there. In all actuality were are probably just mincing words here. Take my 9mm AR. Put a 10" barrrel on it and we have a sub gun. Stick a 16 and now it's a carbine. Same for the Uzi as well as the HK MP series.

As to accuracy, I get one ragged hole groups at 25 yards. At 100 yards it is very easy to hit center mass on a human silhouette type target. Velocity will be a couple hundred feet per second more than typical handgun velocities. You will also gain more velocity on average with +P and +P+ ammo since it normally contains more powder. Muzzle flash is also very low to non existant in low light conditions.

Good SHooting
Red

 

[nipprdog]

you'll get a velocity increase as long as you stick with the lighter bullets.

some of the 147grs will actually lose velocity in carbines, due to the faster burning powders they use.

heres a chart comparing pistol vs carbine velocities, in both 9mm and 45.

 

[Chainsaw]

I chronographed some S&B 115 grain FMJ in 3 different 9mm s/a firearms and the results were,

3 inch barrel ------ 1068 fps (Kel-Tec)
4 inch barrel------1175fps (S&W 5904)
16 1/2 inch barrel--1283 fps (Camp Carbine)

I worked up a handload with the S&B brass with AA#2 Imp powder with Hornady 115 FMJ bullets and WSP primers that cycled the 3 inch barreled firearm and had a velocity of around 1065-1070 fps. I then shot them thru the other two firearms and the results were almost identical to the first test I had done. I can't really say that I liked the ballisitics of the 16 1/2 inch barreled firearm and the trajectory with the ammo I had, and the handloads were not satisfactory either. I sold the Carbine and purchased an M1 Carbine and now had a true 100+ yard Carbine.

 

[Lobotomy Boy]

I'll second the vote of confidence in the 115 grain Winchester Value Pack rounds. Over the past couple of weeks I've run 1000 rounds through my PC9 without any failures whatsoever. I am in the market for a scope and will try some better ammo when sighting that in, but for plinking I'll stick with the cheap Winchesters.

 

[444]

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