Specifically for use in the Airforce Texan .510/.50 caliber PCP Air Rifle.
Inspect the recovered slugs for damage, and put on new O-Rings (extra ones are supplied). Instead of Lead, this slug is made of 145 Copper, which contains less than 1% Lead by weight.51 BE SURE TO HAVE A SAFE SLUG STOP/LANDING AREA BEHIND THIS BOX! In addition, 145 Copper is easily recyclable, and you can get some of your money back by selling the damaged slugs at a metals scrap recycling yard.510/.