What they're doing is taking the 25 WSSM case and trimming it down to just under 1.625" and opening the neck up to .358 and by doing so, it becomes a legal round to hunt with in Indiana. So what I understand is they rebarrel a 25 WSSM rifle (or another super short action rifle) for the new round.
Right now the 460 S&W isn't legal because the case length exeeds the 1.625" maximum (it measures 1.8") There is proposed legislation right now to extend the maximum length to 1.8" to include the 460.
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I've been accused of favortism  here are my favorites:
Mathews Z7
T/C Encore 209X50
-Leupold 3-9X40
Winchester Super X3
Winchester Model 94 Big Bore 444 Marlin
Winchester Model 70 300 Win Mag.
-Leupold 4-12X40
Ruger Super Blackhawk 44 mag.
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