fwiw, I emailed them a couple weeks ago and got a reply back. The reply sounded like they were still in the business, but no longer selling barrels or "kits". But only selling parts, locks, stocks, and labor - which is pretty much everything but the barrel. The email also listed several barrel sources and a lot of general information.
I suspect some of the general information in it was not current - but since it was a response, I am optimistic that the parts availability was.
After talking with his daughter (?) on the phone, I emailed him at
[email protected] (I also cc to a different address that I am pretty sure I misspelled - '
[email protected]')
There are several versions of his website - the email address above came from this one
http://bluegrouseblackpowder.webexone.com/
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I do not own a Blue Grouse, but do have an older H&A rifle. I am hoping to shoot it this weekend, but it still needs a bit of tlc first. That said, I highly suspect I will end up with a Blue Grouse eventually (latter this year) if they are in some way or another still available. The H&A was intended for my daughter - but the wood is too nice for me to cut it down to fit her, so will probably just keep it myself and build her her own
- that and the trigger is too "light" for her as well
.