I'm shooting a Steel Challenge Match tomorrow with my 617, so I set up my loading blocks and DS-10 Speed Loaders for the match. I like to be ready and I don't want to be loading the blocks after each stage so I'm prepared.
It only takes 200 rounds to compete if you don't have any misses. That means I need 39 loadings. I have 17 DS-10s and with my blocks I have another 380 rounds all ready to go. I've neve had to reload during a string of fire but I like having extra ammo just in case. I also let anyone interested in shooting my gun have a chance to do a few runs.