Got Defiants in .177 and .22 Cal, 3 head sizes in each (trial packs)
I try them in all recently acquired rifles and although good, there was only one gun where they came out top ! Think it was a HW 97KT in .177 however as it was so close to JSB's which I use frequently in most guns, I stuck to those.
A bit unfair really but I didnt fancy buying more Defiants.
Oh, there was one gun that absolutly hated them, a Theo, SLR 98 in .177. the mag/underlever mechanism literally "chewed 'em up" !
Nowt wrong with the gun, it performed brilliantly with other pellets !
Naz.