Steel cased .45acp ???

So Ive had my Remington 1911 enhanced for some years now, and I have an itch for more power than a standard .45 acp +p and or .45 super. I use my pistol for everything, range, defensive carry and hunting, especially when big game hunting, my 1911 isnt my primary, its my last resort and I know full well that .45acp +p just isnt going to do anything to an animal bigger than a deer charging at me. So with that, I just came across a forum(not this one) where a guy said that someone used a steel cased .45acp and pushed the case past .44magnum velocities, now I have very very little knowledge on ballistics as a whole, but.....
- I would imagine with a steel case, you can seat a .45 bullet past what you could with brass, in essence overpressuring the cartridge itself in order to gain previously said velocities, he did mention he had issues with the case ejecting and some other stuff. Thats what a .460 Rowland basically is, if I remember correctly, its a longer case that has its bullet seated deeper,which increases the pressure drastically and it has been disproved that its stronger or thicker than .45 super brass. I believe its totally about the metallurgy of the case itself.

-Yes I have spoken to the Clark guys about their kit and what I can do keep the wear and tear at a minimum which they oddly didnt want to get into, they just kept answering that the kit will do just fine which essentially made me iffy on the round and their kit. You can never find any articles about the .460 Rowlands reliability over the long term, you can surely find articles about its power and pricing and such, dont know whether or not thats a good thing or a bad thing, what it does though, is raise questions...and I am not about to put a kit in my gun that costs a quarter of the price I paid for the gun itself if I dont totally trust it.

-What I do know about the 1911 platform is it can handle quite a bit if you change the internals up a bit, firing pin and respective springs, as well as going heavier with the recoil springs and mainspring, I do know their are limits, but those limits have not been clearly defined in any measure and I understand that an up in pressure and power does increase wear and tear on the firearm itself, but I want to mitigate that as best I can.