Evidently, the Colt Delta Gold Cup was manufactured during on of those time periods when Colt was having "Issues". I have found quite a few barrel problems in Colt 1911s manufactured in the mid 80s. The DW accuracy is decent, 2-1/2" at 50 yards, when sized to .402 using Lyman #2 alloy. I just figured a heavier bullet may fly a tad better than the 155gr.

I appreciate the comments. The 80s Delta Cup slugs out at .4022. The DW slugs at .4015. I have yet to slug the Kart barrel, I had to re-cut the feed ramp to 29 degrees to make for a decent feeding of the Lyman 155 gr. Seems the Kart barrel had a steeper ramp than the DW, so cutting was necessary to feed bullets with wider meplats. I do like the nose shape of your bullets. They all seem to have a slight radius at the edge of the meplat. This should make for good feeding. Looks like your RCBS molds have a, somewhat, SWC nose shape. Do they fly as well as the true truncated nose bullets? I have been eyeballing a couple of Tom's 180gr molds at Accurate Molds. One is a true truncated nose the other has a slight swc shape.

I like White Label Red lube and Randy Rat's TAC X. Being from the south, slightly harder lubes are somewhat necessary, especially in the summer months.

Thanks again,

I have had a Delta Gold Cup since the mid 80s and purchased a DW Razorback a few months back. Recently, I completed a "FrankenColt" build. It is an older DE frame, late model DE slide and Kart Para/Clark ramped barrel. Needless to say, I have a newfound interest in 10mm reloading, both for velocity and accuracy.

I am looking for an "Inherently" accurate cast bullet in 10mm. I cast my own and would like some input on favorite molds for accuracy. Seems that .38 Specials and .45 ACPs have 1 or 2 bullets that are inherently accurate, but I don't find that much info on 10mm bullets that show great accuracy when target shooting. As of now, I am only casting Lyman 155gr SWC, but feel sure that there are more accurate cast bullets around.

For those that "cast their own" I would appreciate any advice on weight, style and molds for the most accurate bullets.

Thanks,
Bill