Just a couple of considerations regarding .357 Max brass.
It is not always readily available and the quality of the batches I have is marginal at best.
I have a .221 FB rimless chambered Contender and two .204 Rugers, none of which have ever given me a problem being rimless. As both the .221/.357 max and the .221 FB headspace on the shoulder in a Contender it is doubtful you could prove one design more accurate than the other. I heard it...but I don't believe it.
It is not always readily available and the quality of the batches I have is marginal at best.
I have a .221 FB rimless chambered Contender and two .204 Rugers, none of which have ever given me a problem being rimless. As both the .221/.357 max and the .221 FB headspace on the shoulder in a Contender it is doubtful you could prove one design more accurate than the other. I heard it...but I don't believe it.