Don't know if this is the best forum to post this question but I think so. I'm planning to use resized 0.429" diameter lead bullets for practice loads in my 404 Ruger and 404 Jeffery rifles. because as we all know 0.423" jacketed bullets are pretty pricey. The number of practice rounds needed in prep for a safari can run into real money.

So, I'm looking for a source of custom bored lead bullet sizing dies for my Lyman bullet sizer. I tried Lyman already and they don't make this size or make custom diameter dies. If I need to go with a different system, as long as it's reasonable, I'll consider it.

Any input on sources or ideas welcome. Thanks.

Yes! Check in with "Buckshot" over at Cast Boolits. He does good fast custom work.

Look at Buffalo Arms.

Custom RCBS/Lyman Sizing
These custom sizing dies are made from scratch here in our productions shop and will fit RCBS and Lyman Lubrisizers. If you do not see the size you need for your Black Powder Cartridge needs, please give us a call and we will see what we can do. You may order sizes from .266" through .540" in .001" increments. Thanks!

http://www.buffaloarms.com/browse.cfm?viewfrom=13&catid=461&step=2

Just looked at it. Exactly what I'm looking for. Thanks.

You'll be better off getting a custom .423" bullet mold. I'd recomend mountain molds, reasonably priced and excellent molds.

If you're starting off with hard cast .429" bullets, you're almost guranteed of breaking the handle on your lymann sizer going down to .423". If you are set on going that route, get a lee sizer and run them through your reloading press.