I run both the 255gr LEE RFN and a Keith 'copy' of a 255gr SWC in 3 different .45's and a .460 Rowland and have had very few feeding problems. None of the 1911's have been particularly 'doctored' to make 'em feed better. In fact, one is a Ithica WWII MilSurp. Good mags will help a lot.
It's not the gun, but the man behind it.
Sheriff Russell Cottle, Ret.
USMC; 1967-1970; Vietnam-'68-'69