The 7.62×39 has fed AK and SKS rifles since the Soviet Union adopted it in the 1940s. Today it also runs in AR-pattern rifles, bolt guns and ranch rifles. Ask about 7.62×39 ballistic gel results at any gun counter and you will hear strong opinions. Some swear by cheap steel-case hollow points. Others want a bonded soft point or a copper bullet. Gel testing can help settle the question, but only if you know how to read it.
This guide walks through what a gel test measures, what changes the result, and how the expanding 7.62×39 loads at Bulk Ammo Vault compare on paper. We have not run our own gel tests, so we don’t list penetration or expansion numbers for specific loads. Velocity and energy below come from our catalog.
What a Gel Test Actually Tells You
A proper test fires bullets into calibrated 10% ordnance gelatin. The block is chilled and checked with a steel BB before use, so one lab’s results line up with another’s. After each shot, the tester records:
- Penetration depth, measured from the face of the block to the bullet’s resting point.
- Expanded diameter, the width of the recovered bullet.
- Retained weight, what the bullet weighs after the shot compared with new.
The FBI protocol, built for duty handgun ammo, calls for 12 to 18 inches of penetration. Rifle testers often use the same window as a reference. It gives you a common yardstick when you compare one 7.62×39 load to another. Keep it in mind as you read any 7.62×39 ballistic gel chart.
Why 7.62×39 Gel Results Vary So Much
Bullet construction
This cartridge has a huge range of bullet types. You’ll find full metal jacket, bi-metal hollow points, soft points, polymer tips and solid copper. Each acts in its own way.
- FMJ does not expand. Many rifle FMJ bullets tend to yaw, or turn sideways, as they slow down in gel. Results swing a lot from shot to shot.
- Steel-case hollow points often use a bi-metal jacket. The hollow cavity can be small. Expansion can be less steady than with a premium bullet.
- Soft points and polymer tips open more reliably. They are the usual pick for deer and hogs.
- Bonded and copper bullets hold weight and drive deeper.
Velocity and barrel length
Most 7.62×39 loads run in the low-to-mid 2,000s from a test barrel. Short barrels lose speed. Since expansion depends on impact speed, a carbine with a short barrel may get less expansion than a test rifle.
Barriers and clothing
Bare gel is the easy test. Heavy clothing can plug a hollow point and stop it from opening. Barrier tests through wallboard, plywood, sheet steel and auto glass are much harder on a bullet. When you read a chart, check which test you are looking at.
Expanding 7.62×39 Loads We Carry
Below are hollow point, soft point and tipped loads on our shelf. Velocity and energy are factory listings from our catalog.
| Load | Bullet | Grain | Velocity | Energy | Pack |
|---|---|---|---|---|---|
| Winchester PDX1 7.62×39 Defender 120 Grain JHP | Split Core Jacketed Hollow Point | 120 | 2,365 fps | 1,490 ft-lbs | 20-round box |
| Federal Fusion 7.62×39 123 Grain Bonded Soft Point | Bonded Soft Point | 123 | 2,350 fps | 1,508 ft-lbs | 20-round box |
| Hornady SST 7.62×39 Black 123 Grain Steel Case | Super Shock Tip (SST) | 123 | 2,350 fps | 1,508 ft-lbs | 20-round box |
| Hornady American Gunner 7.62×39 123 Grain Hollow Point Match | Hollow Point Match (HPM) | 123 | 2,350 fps | 1,508 ft-lbs | 50-round box |
| DoubleTap 7.62×39 Barnes TSX 123 Grain Lead-Free | Barnes TSX all-copper hollow point | 123 | 2,400 fps | 1,574 ft-lbs | 20-round box |
| Nosler E-Tip 7.62×39 123 Grain Lead-Free | E-Tip Polymer Tip (solid copper alloy) | 123 | 2,099 fps | 1,210 ft-lbs | 20-round box |
| Winchester Deer Season XP 7.62×39 123 Grain Extreme Point | Extreme Point Polymer Tip | 123 | 2,380 fps | 1,547 ft-lbs | 20-round box |
| Remington Core Lokt 7.62×39 125 Grain PSP | Core-Lokt Pointed Soft Point (PSP) | 125 | 2,365 fps | 1,552 ft-lbs | 20-round box |
| Prvi Partizan 7.62×39 PSP 123 Grain Pointed Soft Point | Pointed Soft Point (PSP) | 123 | 2,461 fps | 1,653 ft-lbs | 20-round box |
| Wolf PolyFormance 7.62×39 Hollow Point 122 Grain | Hollow Point (bi-metal jacket) | 122 | 2,400 fps | 1,560 ft-lbs | 700-round case |
| TulAmmo 7.62×39 Hollow Point 122 Grain Steel Case | Hollow Point | 122 | 2,330 fps | 1,471 ft-lbs | 40-round box |
Notice how tight the velocity spread is. The Winchester PDX1 Defender 120 Grain lists 2,365 fps and 1,490 ft-lbs. The Federal Fusion 123 Grain lists 2,350 fps and 1,508 ft-lbs. With speeds this close, bullet design does most of the work in the gel.
Reading Results Load by Load
Defense-focused loads
The Winchester PDX1 Defender uses a split-core hollow point. It is designed for defensive use. If you find a published gel test for it, look for steady expansion through heavy clothing. That’s the test that matters most for a home-defense rifle.
Hunting soft points and bonded bullets
The Federal Fusion bonded soft point and the Remington Core-Lokt 125 Grain PSP are hunting loads. Bonded bullets like Fusion tend to hold more weight. A gel test should show a clean mushroom with little lost lead.
Polymer tips
The Hornady SST 123 Grain and Winchester Deer Season XP use a polymer tip to start expansion. These are deer and hog loads. Expect fast opening and a wide wound track early.
Copper bullets
The DoubleTap 123 Grain Barnes TSX and the Nosler E-Tip 123 Grain are lead-free. Copper bullets usually keep near-full weight. They need enough speed to open, so shot distance matters. Some states require lead-free ammo for certain hunts, so check your local rules.
Budget steel-case hollow points
Loads like the Wolf PolyFormance 122 Grain Hollow Point and the TulAmmo 122 Grain Hollow Point cost less and feed well in many AK rifles. They are popular for practice and pests. For serious hunting or defense, many shooters step up to a premium bullet.
What About Subsonic 7.62×39?
Heavy subsonic loads change the picture. The Hornady Subsonic 255 Grain Sub-X uses a flex-tip hollow point built to open at low speed. The Brown Bear 196 Grain Subsonic FMJ lists 1,115 fps and 541 ft-lbs. Most standard bullets will not expand at that speed. Subsonic gel tests should be read on their own terms, not next to full-power loads.
A Simple Checklist for Any 7.62×39 Gel Test
- Was the gel calibrated 10% ordnance gel?
- Was it bare gel, heavy clothing, or a hard barrier?
- What rifle and barrel length fired the shot?
- How many shots were fired? One shot proves little.
- Was the bullet recovered and weighed?
If a video skips most of these, enjoy it, but don’t base your choice on it.
Laws on hollow points, self-defense and hunting vary. Check your state and local rules before you buy or use defensive or hunting ammo.
Comparing rifle options? Our 300 Blackout ballistic gel guide covers a similar-size bullet from an AR platform. For shotgun home defense, see the 12 gauge ballistic gel guide.
Shop 7.62×39 Ammo
See every load we stock in our 7.62×39 ammo category. That includes bulk FMJ for training and the expanding loads listed above. Use what you learn from 7.62×39 ballistic gel testing to narrow the list, then let your rifle decide.
Frequently Asked Questions
What caliber is 7.62×39?
The 7.62x39mm fires a bullet of about .310 to .312 inch from a 39mm case. It came from the Soviet Union in the 1940s and is the standard AK and SKS round. It is not the same as .308 Winchester, which uses a longer case and is far more powerful.
Is 7.62×39 the same as 308?
No. Both fire bullets near .30 caliber, but the cases differ in length and shape, and the .308 runs at much higher velocity and energy. The rounds are not interchangeable. Only fire the cartridge stamped on your rifle’s barrel.
Do 7.62×39 hollow points expand?
Many do, but results vary. Premium hollow points like the Winchester PDX1 are built to expand. Budget steel-case hollow points often have small cavities and bi-metal jackets, so expansion can be less steady. Look for calibrated gel tests that include heavy clothing.
Is ballistic gel accurate for rifle ammo?
Calibrated gel is a consistent tissue stand-in, so it is useful for comparing loads. It lacks bone and hide, and short tests may not show how a bullet acts at longer range. Read gel results as a comparison tool rather than a promise of field results.
Is 7.62×39 good for deer?
With an expanding soft point or polymer tip and a sensible range, 7.62×39 is used for deer and hogs. FMJ is not a good hunting choice and is illegal for big game in many places. Check your state’s rules on caliber and bullet type.
