fouling

Hello all, I'm having issues with fouling in my 45 acp barrels using hp38, I have a hk usp 45, and a sig sauer 1911. My load is 5.5gr hp38, cci 300 primers, rmr 230gr fmj bullet, new starline brass, coal 1.260, my average fps is 824. I have some sort of fouling in the first 1/3 of the barrel...

My wife suggested using aluminum foil for cleaning a nickel plated revolver that was pitted and black with both black powder fouling and oxidation. Turns out it works quite well to remove the embedded black powder fouling and the oxidation. Here is a parts gun I bought for a couple of pieces. I...