Not working well with ported barrels?, don't believe any of the hype about "lousy" anything with hardcasts. A properly fitted hardcast with a gas check, sized right, and, good lube will not be a problem.
My .444marlin guide gun, has lots of ports, shoots 290g hardcast lead at +2300 fps, all that is in the ports is dust, a q-tip takes it out quite simply.