I don't know why i didn't use these before . I bought them at close out for 2.00 each at Wal Mart 3 years ago , but ended up never using pellets, but they will work great for powder also , The .25 acp brass fits perfectly in the rubber . What i really like is everything stays together. I put one in the side pouch with a spin Jag, on the butt stock of my Encore .