I have a Thunderer in 45 Colt. it is the most accurate single action 45 I have, on the first shot. The birds head grip pivots in my hand no matter how light of load I use. The long grip frame of the old Vaquero Beasley is the best I've found for sustained fire. I bought out a Cowboy shooter's bucket of 45 Scofield ammo (750 light reloads) for about $50 5 or 6 years ago. They work fine in the Vaqueros I have but even better is they work in my old Rossi 92's, makes a 10 round gun into about a 14 round gun. I have 2 Italian clones that are down for repairs. They are locked up with broken springs, I'll fix them one of these days and I be back up to 4 pairs of 45 Colts. I've played with the insides of 1 pair of Rugers and some parts drop in and some take hours to fit in. But a good set of Wolfe springs will go a long way to making any Ruger into a dream gun! Ivan