Live-Fire Test · 15 April 2026 · Freedom Armory, PA

Ballistic Testing

Three rounds stopped. All contained.

The Delta Panel was tested against .50 BMG and 7.62×51mm NATO at 15 ft. The .50 BMG rounds match UL-RF-J, the UL 752 designation for the most demanding rifle threats. 3 consecutive rounds went into the same 12 × 12 × 4″ composite panel. No exits. Every projectile stayed inside the panel.

UL 752 asks for a single-shot stop. These panels held under three rounds to the same point.

High-Speed Capture · 7.62×51mm NATO

Front and rear cameras on the same panel through the 7.62 NATO sequence. Front-face impacts, rear face intact.

0

Exits

All projectiles contained

12,389

ft·lb Stopped

Energy of one .50 BMG round

53

lb/sf

4" composite panel weight

15 ft

Firing Distance

Indoor range, Freedom Armory PA

Test Parameters

Ammunition & Recovered Rounds

Standard military-grade and commercial rounds, documented pre- and post-impact.

Three .50 BMG projectiles recovered after consecutive impact on the same Delta Panel

Three .50 BMG Rounds Recovered

All three projectiles, deformed and recovered from the same panel surface after three consecutive shots. UL 752 requires a single-shot pass. The Delta Panel passed three.

Test ammunition: .50 caliber BMG, M33 ball

Test Ammunition

.50 Caliber BMG

Weight661 gr M33 Ball
Muzzle Velocity2,910 fps
Distance to Panel15 ft
.50 BMG round recovered after impact, fully mushroomed

Closeup · Round in Matrix

.50 BMG Round, Trapped in Matrix

Copper jacket stripped during penetration, core contained inside the panel. Zero exit. The matrix absorbed the full kinetic energy of the round.

.50 BMG Progression

Three Consecutive Hits, Same Panel

12 × 12 × 4″ composite panel at 53 lb/sf. Three rounds into the same location. Panel stopped each one. Under UL 752 a single shot passes; this is cumulative.

01

.50 BMG · shot

Stopped at the impact face

PASS
.50 BMG impact, front face
Front · Impact Side
.50 BMG panel, rear face
Rear · Exit Side

Observation: Impact-face spall (concrete fragments broken off the surface). Bullet stopped, no rear-face damage.

4-Inch Delta Panel · UL Level 10

The round stayed in the face.

Certification stills of the 4-inch Delta Panel under UL Level 10 test. The bullet is still in the crater. The rear face is intact.

4-inch Delta Panel UL Level 10 front face with bullet caught in the crater
Front · Bullet Caught

UL Level 10 front

4-inch panel. Round stopped in the impact crater.

4-inch Delta Panel rear face after UL Level 10 test
Rear · Exit Face

UL Level 10 back

Rear face intact. No exit.

Close-up of the bullet caught in the 4-inch Delta Panel
Close-up · Bullet in Panel

Bullet caught in the 4-inch panel

UL Level 10 impact crater with the round still in the matrix.

7.62×51mm NATO · 4" Lightweight Aggregate

Small Entry, No Spall, Round Stopped

12 × 12 × 4" lightweight aggregate panel. Five 7.62×51mm NATO rounds at 15 ft, all stopped inside the matrix. Essentially no spall on the front face, no exit on the rear.

0.1 lbof material lost to the 7.62×51mm NATO hit. A comparable rifle impact typically removes around 2 lb.
4 inch lightweight aggregate panel front face after 7.62 NATO
Front · Impact Face

Small entry, no crater

Essentially no spall. Projectile lodged inside.

4 inch lightweight aggregate panel rear face after 7.62 NATO
Rear · Exit Face

No exit

Rear face intact. Round contained.

Finished UL-RF-H test panel with five 7.62x51mm NATO impacts, none through

UL-RF-H Certification Test

Five 7.62×51mm NATO rounds into a 4-inch lightweight aggregate panel at 15 ft. All stopped at the impact face, none through.

High-Speed Capture · 7.62×51mm NATO

Front and rear cameras on the same panel through the 7.62 NATO sequence. Front-face impacts, rear face intact.

Test Summary

Complete Results

RoundDistanceObservationVerdict
.50 BMG shot15 ftImpact face spall. Bullet stopped, no rear damage.PASS
7.62×51mm NATO15 ft6" lightweight aggregate panel. Small entry, no spall, projectile stopped in target.PASS

Headline: All three .50 BMG rounds fired into the same panel, in the same location.

3 consecutive hits · all stopped in target

Want the full test report?

We can walk you through the panel specs, the range data, and how The Delta Panel fits your protection requirement.

(800) 935-6796 · [email protected]