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I think you are more likely to find accuracy adjusting seating depth and or powder charge weight or type than the "niceties" like champfering necks /cleaning primer pockets etc.

A good load is a...

I can just see you bugging out to the bush carting all your dies brass powder primers and rifles.

That lyman kit I posted is cast iron....but it is an open press.....probably still stronger than than the lee cast alloy o press....I saw neckshots one he broke in half sizing 260 brass.
My press is...

https://www.magnumimports.co.nz/products/lyman-brass-smith-ideal-reloading-kit

Will add if you are going to buy a kit try and stretch a bit further than the lee.
The most important and expensive part of any kit is the press and the cast alloy lee one is a bit weak.
Second...

You need a full lenght sizing die.

I am not familiar with the breach lock kit so dont know what is in there but to answer your question as best I can.

Two die set of full lenght sizing and seating die is fine for most situations....