.40 S&W Winchester 155gr Silvertip JHP (Glock 27)

.40 S&W Winchester 155gr Silvertip JHP Product Number:X40SWSTHP, Lot Number: AA21						Test Date: 12/99
Test Weapon: Glock 27, 3.5" bbl
Bare Gelatin				Denim Covered Gelatin
Gelatin Calibration: 8.9cm @ 571 fps				Gelatin Calibration: 8.7cm @ 579 fps
Shot #	Velocity Feet/Sec	Penetration Inches	Expansion	Shot #	Velocity Feet/Sec	Penetration Inches	Expansion
1	1070	11.7	.72	1	1067	18+	NR
2	1092	12.4	.68	2	1089	16.8	.58
3	1097	11.9	.76	3	1098	18+	NR
4	1095	11.4	.71	4	1079	18+	NR
5	1026	12.5	.72	5	1087	18+	NR
Avg.	1076	12.0	.72	Avg.	1084	See Remarks	See Remarks
Corrected		N/A		Corrected		N/A
Remarks: Gelatin calibration corrected to 9.2cm in accordance with: "Figure 5-2, Velocity Variation Correction to Measured BB Penetration Depth." Bullet Penetration, MacPherson, Duncan, Ballistic Publications, El Segundo, CA, 1994, p. 84.				Remarks: Gelatin calibration corrected to 8.9cm in accordance with: "Figure 5-2, Velocity Variation Correction to Measured BB Penetration Depth." Bullet Penetration, MacPherson, Duncan, Ballistic Publications, El Segundo, CA, 1994, p. 84. Five shot average penetration depth and expanded diameter cannot be determined because shots #1, #3, #4 and #5 penetrated entire length of 18 inch gelatin block, exited, and were not recovered. Bullet #2 exhibited asymmetrical expansion due to jacket tearing away from lead core.