Have been shooting Tallammo for a while now out of a 1911 but wanted to get opinions if it is safe to use in a glock. I only use it for target ammo and get it at Walmart. It runs $9.99 for 9mm, 12.99 for .40, and 14.99 for 45acp. They use a black steel casing instead of brass. They look just like Wolf ammo. Any thoughts.