The smoothest and my favorite press is an old Rock Chucker. I have an A4 that I bought along time ago specifically for long cartridges 470, 475 # 2, 577 etc it is large enough to insert the long cases and seat the bullet in a normal fashion.
The A4 is long discontinued and like the old Rock Chucker is very well made. It seems to be a far more solid press than the model RCBS replaced it with.
The longer stoke makes it a bit slower for regular reloading.
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Len
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