I had lee a rcbs dies to start with both were good. Rcbs probably a bit better but when i got a dillon i got dillon dies because they are super easy to adjust and use. But are a bit more expensive too.
Never tried hornaday myself but don't hear bad about them either. I don't think you will go wrong if you buy good quality off the bat. I figured you don't replace them very often so go what you think is best quality right out the gate. If I didn't buy dillon i would buy rcbs.
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