Today we test out Grimburg Less-Lethal HP 68 projectiles. They are made of nylon and copper. The copper gives them considerably more WEIGHT. The dimensions and weight make them an ideal projectile to utilize a plain old field and target load and give you over 1600 fps of velocity. Because they are 1/4 the weight of a lead slug, the recoil is VERY manageable.
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HP68 Grimburg Less Lethal Projectiles for Self Defense
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Grimburg HP68 T9.1 over 400 FPS shoots thru Pig Skin