Originally Posted by Conor
Are you talking about velocity or energy?
Not sure if that was directed at me?
If so ... then both. The lighter pellets will have been going faster at the muzzle than the Barracudas ( 12fp is about 800fps with a 7.9gr and about 700fps with a 10.6gr ). The lighter pellets in the Vulcan were struggling to make 12fp. The Barracudas made 13.5fp. In springers it's supposed to be the lighter pellets that give more efficiency and a higher muzzle power ( fp ). Not so in that Vulcan and I was sure it was because the 'tighter' Barracudas allowed a greater pressure to build up behind the pellet before it started it's initial fast acceleration.