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Lead core steel tip "Bullet Type: M855/SS109 Steel Tip Lead Core Projectile" Features and Specifications: Manufacturer Number:556K Caliber: 5.56 NATO Category: Centerfire Bullet Type: M855/SS109 Steel Tip Lead Core Projectile Bullet Weight: 62 Grains Muzzle Velocity: 3100 fps (from a 20" Barrel); 2920 fps (from a 16" Barrel) Muzzle Energy: 1323 ft/lbs Bullet Ballistic Coefficient: .243 Casing: Reloadable Brass Primer: Non-Corrosive Boxer Quantity: 20 Rounds Per Box Uses: Range, Practice, Hunting

Hi Jeffrey and welcome. This is a Lead Core with mild Steel core bullet as pictured, so it is not usable at your range. Cheers, stay safe and enjoy! https://www.researchgate.net/figure/Schematic-and-photograph-of-556-mm-tungsten-nylon-projectile_fig1_235040251

This round has a semi steel core so it'd be a no go at your range.

Hi Jeffrey, green tip ammo has a semi-steel core, you wouldn't be able to use it at your range. Stay safe & have a great day!