winchester is making a limited edition 73 in 357, might be worth a look , my winchester 92 is a little picky about what ammo it will cycle fast 125 gr lrn or 125 gr 9mm lrn . 158s tend to jam occaisionally when cycled quickly but if you operate the gun "normally" its fine i think it could be inertia acting on the heavier bullet as it is brought up to chamber.
the uberti 73 cycles anything as fast as you can move em!

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