I have an RCBS 250K; it barely hits (kind of) being sized and lubed in a .431 Star die with Lino. With WW alloy it flat doesnt work.
It and the Lyman can be great moulds, but they have their pitfalls for success.
What gun or guns do you plan to use this bullet in?
The 275 K has the best killing meplat, but requires a flat bullet seating plug, the H&G 503 runs decently in lever guns and has a better meplat than the 429421 and RCBS 250K.
