Another cheap(er) option for them as have already got a frame (note the WV phraseology) would be an Encore barrel or maybe a Contender (don't know if that's a safe option). The TCs would be only a little ooglier than the No.1.
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The .450 Bushmaster is the hot ticket here in lower Michigan. It seems everyone is buying Ruger Americans. They are cheap and accurate (and as elegant as a fence post). Without the brake, they are not pleasant to shoot; the butt is narrow and it feels like the pad is too soft and collapses.
That being said, that #1 is butt ugly! I would like to have have a #1 in .460 S&W which is also legal here; head space on the rim rather than mouth and higher max operating pressure.
I like the 460. No idea if it will be a long term success. There is nobody, other than S&W, in the revolver spaced that can make a gun for that or the 500. The 500 is rock solid suceess. The 460 is a little too much finesse for most. Now Michigan might give the 460 a boost too. The 460 seems a natural in a single shot. The 460 & 450 use the same bullets and there are some pointy options.
I also disliked how the 450 BM head spaces, but given the rules in Michigan, I understand why it would be popular. The 44mag is popular around here, where if longer range is needed just use the 7mm-08, etc. Under Michigan special rules the 6&7mm guns are not an option.