I used the powerbelts out of my OPTIMA this year 245gr hollow points with 100gr T7 pellets the gun shoots them great.I shot a deer with this load and dropped it on the spot but I didn't like the way the bullet blew apart.I went and got some 300gr ShockWave SuperGlides that Iam going to try out.This is just my opinion they did the job but I wasn't impressed no exit wound.