Yeah, my lightweight utility round is a swaged 375 grainer with a spirepoint and boattail made by Buffalo Bullet for use with sabots in muzzle loaders. The bullet is pure lead and I paper patch them. Well, I have recently started playing around loading them. It will be interesting to see what they do. Now, a 450 grain Lyman "volunteer" bullet patched on the base and seated way out lets me treat it like a 45-90, well, almost. I load them heavier in the #3 but that rifle is too light for it, I am much happier with loads that both rifles like. The 350 grain is nothing exotic even if it is 7/3 what you might shoot in a 30 cal. (if you are shooting 150 grainers). If you compare that to how much bigger .45 really is next to .30 you would see that the two are rather comparable; and 150 is no heavy weight in a .30.