Cajunvol- thanks for the note, lots of good information. I have run into the same issue with locating suppliers. The GMI website looks interesting, I will look forward to hearing how the dies work for you in the long run.
While I have the knowledge and experience to probably produce it myself, but I think I am getting lazy in my old age…

My background starts when I was in college and blindly fell into a communications friendship with a couple of the old time 17 caliber centerfire bullet manufacturers. I had read PO Ackley's book on wildcating and so as just a shot in the dark I wrote him (Ackley) a letter – danged if he didn't reply! He suggested I contact a couple of people he had mentioned in his book and gave me their addresses – danged if they didn't reply when I wrote them a letter!
After prolonged letter communication and a couple of phone calls, a gentleman by the name of CH Stocking ended up packing his 17 caliber self-made swaging dies and press and sending them to me. Couldn't believe it! I learned the process on his gear, then returned it to him. Being broke at the time I really could not even offer to buy it. What a fantastic experience, along with falling into a willing mentor(s). Stocking had made his own press, dies, and the reamers to make the dies with. And he did it all on a 11 inch Southbend Lathe, with a milling and tool grinder attachments in his basement… A different day, time and attitude.
I have used the Corbin die sets, again for centerfire rifle bullet manufacturing and have had good success there. I suspect I need to call them and see what they can offer. I think my RockChuck press will do the job, as slugs are close to pure lead. I had hoped there was someone out there who made the die set that would allow me to just buy it and run. I think there are a lot of centerfire converts out there, who like me, have access to a fair amount of reloading equipment. Time will tell, I will let you know my success/failure in the next few months…
Where I am trying to get to – I have a new FX Impact on order in .25, and see it having enough adjustability to really take advantage of different bullet shapes. The power is there and it appears the accuracy is exceptional. I am primarily a varmint shooter, ground squirrels in alfalfa fields, and commonly shoot a fairly high volume of squirrels during the spring and summer (700 – 1000 per day). Shots run from 25/30 yards out to as far as you would care to try. It is a larger alfalfa operation, approximately 21 mi.². Wind is normally calm the 1st one to 2 hours of daylight, then the wind education begins…
Thanks again for the reply, I will continue to update as I move forward. Have a great day- good luck and good shooting. Cliff B (Hi-vel)