223
#1 Federal - all around best case, primer pocket is an extra step but not a PITA.
#2 Lake City - great brass but primer pocket is a real PITA.
#3 PPU - really good brass ,almost no cars prep needed, primer pockets have no crimps.
#4 PWC - good brass but a little soft and cases grows in length and need trimming every time.
#5 Remington - good but soft ,don't like the heads.