https://www.mp-molds.com/product/360-640-solid-6-cavity-plain-base-mold/ . Didn't try it yet, waiting for fellow shooter to finish his shooting range. Despite fine 686, I always admired Ruger Security Six 6", it's balance and reasonable weight. The truth is I also like a lot S&W 66, 6", but because it cannot compare in strength and durability with Security Six, I ruled out 66 as my next revolver. At first, I didn't think about getting Security Six, but I learned that few in stainless steel might be for sale, including one with scalloped shield. So, before rushing to get Security Six, I would like to know what is your experience with 6" Security Six regarding accuracy with lead bullets, and how it compares with GP100 and S&W 686? Thanks!