AK338, You bet, I like heavy hardcast as well, it definitely has it's place in the game fields, a buddy and I had a barrier test shoot one day, he shot 250gr flat nosed hardcast in his 45 Super, I shot the 200gr Lehigh penetrators in my 45 Super, old car doors, windshields, stumps, cattle leg, femur and pelvic bones, appliances, propane bottles and tanks.
Many times the Penetrators made it through and the hardcasts did not, I believe the hardcasts didn't simply because they're not as hard as a monometal solid, maybe not needed in a hunting situation, but, with so many guns, I like one load for every weapon I have.
Overcoming barriers is part of what I'd ask my 45 Super to do, keeps it much simpler, at the conclusion of that days shooting, he asked where to buy the penetrators then asked for my load data ; ]
I shoot the Lehigh penetrators in 38 Super, 357 Sig and 10mm.
I also agree on 800X, very glad I grabbed several pounds of it when I first started loading 45 Super.