There isn't enough room for two crimps and lubrication on a 260 gr 45 bullet. Best to have the different crimps put into different cavites. Like two short and two long. Also to gain optimum accuracy I would put a relitively small lube groove in, since you don't intend it for heavy loads.
In the same vein, a customer sent me a photo this week of his first revolver cast bullet deer kill. An instant kill at 75 yards on a nice forkhorn, or four point by eastern count. He used a 44 mag Redhawk with 2X Leupold scope, with my 260 gr PLAIN BASE bullet, but didn't name the nose profile, loaded with 24 gr H110 and lubed with LBT blue soft lube. Says accuracy is sub 2 1/2 inch at 100 yards, and has never had a trace of leading after 800 rounds of full house loads. I'm going to guess he was using the WFN, but will change that guess and the group size if he tells me different. Either the LFN or WFN would kill about the same with his full load velocity, which is probably pushing 1500 fps. (He didn't give a chrono speed.)
