To be honest they don't expand all that much with 40+ftlb but they are accurate both in my sub 12 Scorpion & FAC Rapid 25cals.
Photo in the linked thread is .25cal FX hybrid, Hades & Polymag recovered from "balistic jell" at 42yds shot with the Rapid.
http://www.airgunbbs.com/showthread....amp-conclusion