I have tried several slugs in my Seneca Eagle Claw .25. I discovered AVS while reading a couple of reviews, and decided to order a sample pack. They arrived very shortly, and I could see they were different in appearance from any other slug. After a full afternoon with the chronograph and punching paper, I was thoroughly impressed with the FPE and the accuracy of these slugs. I showed them to a friend, who did a gel test to check on how they performed. Amazing, they mushroomed and looked like they would be killers. We took them to a permission dairy farm and tried them on pigeons and doves. When they hit, they died. No fly offs or even cripples. Just dead birds. AVS will custom size and grain to your specifications. In my .25, I am using .254 and getting 70 FPE. We are smacking birds out to 80 yards with ease. Accuracy is amazing for a rifle that isn't supposed to do well with slugs. You need to try AVS.