SSS                  My friend only wants to shoot a few rounds just to say he had.

That's just about exactly what I said about thirty years ago!  You might want to give your friend fair warning
Sorry I can't help with the 40-50SBN

Regards, Joe

Where to start with the .40-50 SBN. Really a neat little cartridge, easy on the shoulder and easy to reload. Accurate, too.

First the brass. BACO only forms brass from WW and WW seems to have a QC problem with rim thickness. I ordered 20 rounds from BACO of the WW .40-50 SBN brass. Of the 20 rounds all chambered fine, BUT only 6 would let the action close with minimum pressure; 8 would not let the action close at all; the rest had problems closing the action with moderate to really firm pressure. End results, 14 of the rounds had to be sanded, some to the point that the headstamp was almost gone, to get the action closed with minimum pressure. Kicker is, Remington brass is fine, no problems at all. Remington brass drops right in the chamber and action closes smooth.

Dies: I can't remember right off the top on head who I bought my dies from, either Natchez Shooting Supplies or MidSouth. Whichever one, the dies were extremely reasonable compared to BACO or Midway. Like less than $60 compared to over $150.

I'd agree that you can probably reload without the dies. If the neck needs expanded you might get away with using a .40 S&W expanding die. I never resize my brass after the first shooting. I may taper crimp slightly to keep the bullet in for hunting but that's about it. Seems to work fine for the shooting I do which is hunting and informal target shooting.