I like shooting my 45 Hawken but was a little annoyed with the reloading speed, what with having to grab the powder,patch,ball,and the starter. My barrel is a slow twist, so it prefers RB for best accuracy and commercial sabots are a little pricey and not as accurate for me. I came up with this solution to load faster and retain the accuracy of using RB. I found that the .451 RB boolits I cast for my 44 BP revolver were a press-fit in my rifle barrel, so I took some 45 sabots, cut off the petals, turned it upside down and had a cup to lightly glue in the ball . Now my "speed-loads" are easier to load and my accuracy was retained. Took a nine-pointer at 60 yds with one last month and the projectile I recovered from it showed good rifling all around. The speed-loaders I had were not as fast to reload as this is. Pre-measured powder in an old camera film case and one of these makes for quicker reloads for me. I can thumb-press this in without needing the starter. It may not work as well for you if your barrel is a little tighter or looser. Worth a try.