+1 on Montana Bullet Works.
They have revived a very nice company after the original owner retired.
He had a very comprehensive collection of the Veral Smith WFN designs as well as many others, some unique.
Theirs is one of the only true Keith designs still being made.
I have become a Smith convert as I believe him to be a truly worthy successor to Elmer when it comes to cast bullet design.
Veral is no where near as eloquent as Elmer was but his book is still an important read for every cast bullet user.
Jacketed Bullet Performance With Cast Bullets
Beartooth also offers a true Keith with square bottom lube groove, 3 equal driving bands and a flat base.
They have most of the WFN designs as well and make very good bullets.
They are a little expensive and have a long lead time but I have used their bullets very successfully for years especially when Montana was out of business.
One of their main men, J. Marshall Stanton, is a well known guru of the 444 Marlin.