I have a Dillon 550 conversion kit and nice set of matching Dillon dies for $125. Pretty sure the conversion kit works for several other cartridges as well.
Also available is a set of Bonanza (Forster) 22-250 dies with the benchrest seater die. Good condition, $75. Prices do not include shipping.

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The conversion kit is SPF. Asking $80 for the Dillon dies and $75 for the Bonanza/Forster Benchrest dies.

could i get more info on the dillon 22-250 dies

The conversion kit and the Bonanza/Forster dies are sold, but the Dillon dies are still for sale.
Here is a picture of the dies:

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