A while back I bought some 230 grn XTP's in .45ACP. Loaded thousands of 124 grn in 9MM and not one issue. I've loaded thousands and thousands of .45ACP FMJ's and JHP's so I pulled out my Lee book and l started a ladder test with WIN231. Loaded to 1.200 COL..plunked good in my barrel. Had trouble with the feeding on my Sig 220 and my 1911. The 1911 didn't surprise me, 1911's are for good old round ball but the Sig kinda did. So I finally got good feeding in the Sig but I was down to 1.18 COL. No signs of over pressure at 4.7 grns which was the highest I went. Been leaving it alone since, but would kind of like to load them up. Anybody have any experience or thoughts?