Any butt joints or seams create a ballistic weakness. To insure ballistic integrity, we recommend that you incorporate 4" overlap strips (battens). These strips insure a 2" ballistic overlap on the back of each side of the seam. Conformity to curved surfaces can be handled by placing 12" to 18" vertical strips following the inside curvature of the surface to be protected. The same 4" overlap strips should be employed at each joint.

Installation for Bullet Resistant Panels of All Levels >>

BR Level Specification Comparison Chart

BR Level (UL752)	Shots	Ammunition (Grains)	Velocity Min/Max FPS	Thickness (inches)	Weight (lbs)	Nominal (lbs)	Fire Rating (Hours)	Weapon

Level 1	Single	124 GR FMJ	1175-1295	1/4	2.6	62.4	1	9mm Full Metal Copper Jacket with Lead Core
Level 2	Single	158 GR SP	1250-1375	5/16	3.6	86.4	1	.357 Magnum Jacketed Lead Soft Point
Level 3	Single	240 GR LEAD	1350-1485	7/16	4.8	115.2	1	.44 Magnum Lead Semi-wadcutter Gas Checked
Level 4	Single	180 GR SP	2540-2794	1-3/8	13.9	333.6	1	.30 Caliber Rifle Lead Core Soft Point (.30-06 Caliber)
Level 5	Single	150 GR FMJ	2750-3025	1-7/16	14.8	355.2	1	7.62mm Rifle Lead Core Full Metal Copper Jacket, Military Ball (.308 Caliber)
Level 6	Multiple	124 GR FMJ	1400-1540	3/8	3.9	93.6	1	9mm UZI Full Metal Copper Jacket with Lead Core
Level 7	Multiple	55 GR FMJ	3080-3388	1-1/8	11.7	280.8	1	5.56mm M-16 Rifle Full Metal Copper Jacket with Lead Core (.223 Caliber)
Level 8	Multiple	150 GR FMJ	2750-3025	1-716	15.2	364.8	1	7.62 Rifle Lead Core Full Metal Copper Jacket, Military Ball (.308 Caliber)

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Bullet Resistant Batten Strips (4" Wide)

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