smee78- I have rifles in both 45 Colt and 44 Magnum so I am familiar with their qualities. The lowly 30-30 (as some consider it) will outshine either.
I never said you can't hunt with a pistol caliber carbine, what I said was that if I am going to carry a rifle for serious purposes, I want one in a serious rifle caliber. The one situation where a pistol caliber carbine makes sense is if one is prohibited from carrying a handgun. Then a compact 357 or 44 rifle is useful.