With 'lead' bullets, the alloy and 'lube' is the problem and the solution.

Some brands of ammo give no problem and cleanup is very easy.

I have shot a fair amount of Fiochi .357 magnum ammo, with Lead Projectiles, in revolvers and in a Marlin '1894' carbine, with Ballard style rifling. Cleaning has been easy.

I had heavy leading with .44 Special Winchester-Western 'Cowboy' loads in a Marlin with Ballard rifling. It took all the fun out of shooting that carbine. Things should have been easy, but, cleaning was not.

I have found my model 1911's in .45 a.c.p. very easy to clean.
I shoot mainly reloads that use pre-lubed 200 grain "wad-cutters" of various commercial brands (swagged and poured).