ok i will admit i am not a skeet/trop shooter.
i just had a customer of mine give me 3 and 1/2 cases of blue rocks. they are older and i think they are blue (i'll take a pic in the am). i'm just curious about them. i plan to donate them to north mountain hunt club near me for them to use in the youth training. i have never heard or seen these things before, so i'm looking for any and all info. thanks rats :cool:
my biggest question is do they get to brittle over time and become unusable?