Tuesday, July 16, 2013

Back to the pistol-cartridge carbines thing Updated

Ran across this the other day, and it includes this table comparing each cartridge from pistol and from carbine:
Terminal Performance Comparison
Load Gun MV (fps) EXP (inches) RW (grains) PEN (inches)
9 mm 124-grain Speer Gold Dot Pistol 1,182 (50) .71 124 13.25
9 mm 124-grain Speer Gold Dot Carbine 1,352 .45 107 17.50
9 mm Federal 115-grain JHP Pistol 1,117 (59) .57 114 14.50
9 mm Federal 115-grain JHP Carbine 1,318 .50 70 16.00
.40 S&W 155-grain Speer Gold Dot Pistol 1,222 (58) .72 155 14.00
.40 S&W 155-grain Speer Gold Dot Carbine 1,458 .75 140 14.50
.40 S&W 155-grain Winchester SilverTip Pistol 1,209 (84) .76 155 10.25
.40 S&W 155-grain Winchester SilverTip Carbine 1,459 .82 145 12.75
.45 ACP 185-grain Speer Gold Dot Pistol 1,080 (59) .72 185 14.00
.45 ACP 185-grain Speer Gold Dot Carbine 1,279 .68 160 14.75
.45 ACP 165-grain Cor-Bon +P JHP Pistol 1,264 (89) .78 68 10.25
.45 ACP 165-grain Cor-Bon +P JHP Carbine 1,633 NA NA 5.75
.45 ACP 145-grain Glaser Silver Safety Slug Pistol 1,362 (41) NA NA 7.00
.45 ACP 145-grain Glaser Silver Safety Slug Carbine 1,617 NA NA 8.00

Most of them the carbine gets ~200fps advantage except the Cor-Bon +P, which gained 369fps.

Update: Skidmark reminded me of this site: Ballistics by the Inch.  They take a bunch of different cartridges and loads and start with a 19" barrel, then cut it down an inch at a time and check velocity along the way.
They also take standard off-the-shelf firearms and check velocity through them.  Well worth looking at.

3 comments:

Erin Palette said...

And this is why my home-defense weapon is a 9mm carbine chambered in same JHP as my carry gun. :D

skidmark said...

Go check out Ballistics By The Inch
http://www.ballisticsbytheinch.com/

they run the same load out to about 16 inches. Very informative.

stay safe.

Sigivald said...

The expansion differences, and the way they evidently depend significantly on bullet design, surprised me.

(By which I mean, it's weird the way the Speer 9mm expands so much more out of a pistol, vs. the .40s expanding more in the carbine.

I'd have expected more expansion from the faster bullet every time...)