Im not gonna read thru all the soap opera episodes above. Sounds like an interesting project. The 25 wssm is a screamer now and I don't think you would gain too much by the ackley improvement as it already has min body taper and 30º shoulder. Just keep in mind that dies are more expensive, no data out there but you could work up to it. Case forming is another step in the process. Minimal case stretch is a bonus. I think Feenix said its addicting and it is. I've done 20 Vartarg, 243 AI, 250 AI, 257 AI, 7x57 AI, 280 AI and love them all. I may try a 25x284 in the future as I like the 1/4 bore and the 284 is an amazingly accurate round. My 257 AI is very accurate and just a really sharp looking cartridge. It has never failed to drop what it was fired at. Keep us posted on what you decide.