Terminal Wounding Effects of FN 5.7 x 28 mm Projectile.
1. Clearly the 5.7 x 28 mm serves NO purpose. I have personally
fired the 5.7 x 28 mm FN P-90; velocity, penetration, and tissue
destruction is far less than we see with 5.56 mm 62 gr M855 FMJ fired
from M4's;.45 ACP 230 gr FMJ fired from M1911's will crush more tissue
and penetrate further than the 5.7 x 28 mm. Use of the 5.7 x 28 mm is
a good way to ensure mission failure.
2. Copies of several papers which have described the incredibly poor
terminal performance of projectiles fired by the FN P90 are enclosed.
· Dahlstrom D, Powley K, and Gordon C: â Å“Wound Profile of the FN
Cartridge (SS 190) Fired from the FN P90 Submachine Gun". Wound
Ballistic Review . 4(3):21-26; Spring 2000.
· Fackler M: "Errors & Omissions", Wound Ballistic Review .
1(1):46; Winter 1991.
· Fackler M: "More on the Bizarre Fabrique National P-90", Wound
Ballistic Review . 3(1):44-45; 1997.
· FBI Academy Firearms Training Unit. FBI Handgun Ammunition Tests
1989-1995 . Quantico, U.S. Department of Justice--Federal Bureau
of Investigation.
· Hayes C: â Å“Personal Defense Weaponsâ â€Answer in Search of a
Questionâ ?, Wound Ballistic Review . 5(1):30-36; Spring 2001.
· Roberts G: â Å“Preliminary Evaluation of the Terminal Performance
of the 5.7 x 28 mm 23 Grain FMJ Bullet Fired by the New FN P-90 ,
Using 10% Ordnance Gelatin as a Tissue Simulantâ ?, AFTE Journal .
30(2):326-329, Spring 1998.
· Roberts G: â Å“Terminal Performance of the 5.7 x 28 mm 31 Grain SS-190
FMJ Bullet Fired by the FN P-90 in 10% Ordnance Gelatin.â ?,
AFTE Journal . In Press.
3. The early 5.7 x 28 mm 23 gr FMJ bullet fired by the FN P-90 had
insufficient penetration for law enforcement and military use. The current 31 gr SS-190 FMJ bullet has nearly adequate penetration, but
the wound resulting from this projectile has a relatively small
permanent crush cavity, as well as an insignificant temporary stretch
cavity. Although the 5.7 x 28 mm penetrates soft body armor, it
offers the same wounding potential as a .22 LR or .22 Magnum. Even 9
mm NATO M882 FMJ makes a larger wound.
4. Numerous other projectiles commonly used for law enforcement and
military special operations applications, such as the 9 mm 147 gr JHP,
.40 S&W 180 gr JHP, .45 ACP 230 gr JHP, several .223 60-87 gr JHP/JSP,
12 gauge shotgun slugs and 00 buckshot, all provide better
penetration, crush more tissue, and have far greater potential to
reliably physiologically incapacitate an aggressor than the 5.7 x 28
mm 31 gr SS-190 FMJ bullet fired by the FN P-90. Law enforcement
agencies and military special operations units are strongly urged to
avoid adoption of any 5.7 x 28 mm weapon system.
5. Additional information on wound ballistics is enclosed. If you
need further information, I can be reached at:XXXXXXXXXXXXXXXXXX