Squarebridge - you use dies from your dead die box to make up 3 or more cases, then fire them in the chamber - then send them to a die maker so fitted dies can be made for your chamber. This is usually cheaper than getting 2 reamers made and buying die blanks to make your dies with or having some smith make them for you with your reamers. If you go that route, the roughing reamer is used to make the FL die and the finnish reamer is used to make the seater. It is cheaper to buy one reamer, the finnish reamer, cut the chamber, cobble some cases to fireform, sent them off to a die maker to make the dies for you. Maybe $140.00 to $200.00 for the dies. If a Smith makes them from your 2 reamers, you'll be looking at many times that price. 1st of all, there's the extra $180.00 for the roughing reamer - then the smith's time and materials for the dies - probably 200 to several hundred $$. That makes the set of dies cost you $180.00 + 2 more - maybe more than that.

You don't need exactly correct dies to make ammo - thought you knew that.

For expample, I used a 6.5x68S reamer to cut the my idea of a 9.5x68 chamber in a .375 barrel - around 1988. I ran the 6.5x68S reamer in to the same shoulder length as the 8x68S chamber(different than the 6.5x68S). I bought a neck throater and cut the neck and throat. What I ended up with was a .375 barrel chamberd for a .375 on the 8x68S case, using a 6.5x68S reamer and a neck throater. I then made my brass for this 'custom' chamber using a .375" neck expander die on 6.5x68S and 8x68S brass, necking them up to take a .375" bullet. 3 fired cases were sent to Huntingtons die service and a set of 9.5x68 dies were produced from those first 3 fired cases. Until those dies arrived, 8x68S brass as well as .375H&H brass was used for this rifle. .375H&H brass needed the belt turned to .522", trimmed to proper case length, was loaded, fireformed and perfectly fitted brass resulted, ready for re-loading - all without having dies previously. While waiting for the dies to arrive, I bored a .358 Seater die to resize the fireformed cases and reloaded them using makeshift dies. By the time the 'real dies' arrived, the rifle had fired off more than 700 rounds. It's your choice.