H&N Baracuda Match (4.5 mm) .177 Cal, 10.65 gr - 400 ct

Try these out. Good and heavy, just right for a Gamo varmit and maby something that is not to underpowered. Definitely a Gamo varmit and powerline 901,all I can help you with. I shoot bulls eye all day long, sometimes it get boring when you hit bullseye all day no matter what the target is, gotta love that.

Pros
I love these pellets. They are shiny, clean, no residue, no pellet dust. I shoot them in my Gamo varmit. I tried different pellets, these are the only pellets that I will ever buy for my 5 guns that I shoot them in. 3 Gamo varmits,2 powerline 901 from daisy.they shoot straight, true,hardly any flyers, if I get a flyer, its only maby only 2 or 3 inches from center, not bad I think. Before, I was using tomahawks from Gamo now its these. Tried a lot, these are the only ones. Right weight, super clean no lead powder or residue, gotta love that. Buy these pellets.

Cons
I personally would not change anything. Definitely got a winner in my book. Won't buy anything else.

I have 3 guns, and the fist time I used this pellet was with the
"Aspen" PCP. I am so happy with this combination I am too stingy to
try it on the other 2 guns, which are not the same quality as the
Aspen. At 50 feet I put 20 rounds in the diameter of a AA battery.
Outdoors at 66 feet, 9 of 10 in a dime, all 10 in a quarter. Then
again outdoors at 100 feet, 9 of 10 in a quarter. The 10th was just
outside the mark (still a good kill for varmints or small game).