Both powders, 2460 and 8208XBR are right up to the shoulder, maybe a little lower, but with that TTSX being 1.08" long, it definitely pushes powder. I'll fire those 3 TTSX's I have and see. I like the drop tube. What bullets are you using with your 8208? The other issue is that I live in lead free California, so I'm limited to bullet choices for hunting rounds, and I like the tipped bullets for reliable feeding. I might just have to try and find some AA2015, 2230, or 2200..........Another question, well, more of a theory, hotter powder for light bullets, slower powder for the heavies?