Nice setting.
You will see mine someday, Nef 45-70 + BR T8. I've too much fun with my new toy to send-it to the smith !. Will look as my 30-30 tactical, Choate varmint and harris already on.
I'm working on the reload. Cast bullets:Lee 457-325-FN, 457-405-FN, 459-405-HB and a new one 457-340-FN, in the 1050 FPS range. (paper punching only).
H&R are on the wide side for barrel bore, you may have to slug your. They works often better with .459 bullets ( +accuracy, -leading ).
457-325FN as cast .460 resized .459
457-405FN as cast .458 resized .457
459-405HB as cast .464 resized .459
457-340FN unknown for the moment i hope .460
The 405FN would be better "as cast". Resized, gave me light leading.
But, I resized because, i want them uniformly round!.
Ian,
Making a "valuable" record is not so easy. We need a professional recorder without any compression circuit on the mic line and reference sound with a level known by the listener.
I've made a small video (1Mo) with my digital camera of me shooting my 22H.
http://pascalp2.free.fr/images/nef/22hornet/nefMVI_1226.avi(If you get the sound without image, try QuickTime)
You will ear: the shot, a metal gong hit and falling 50yards away and the sound of the transfert bar when i release the trigger. Again, due to the compression circuit the levels are somewhere false. The sound is louder than in an open space, the range is closed and covered.
With a good suppressor, the sound of a supersonic 22H or a 300Wmag are quite the same. As Howard said, a 22lr supersonic because all which stay is the supersonic bang. The noise is funny, a "crack" without "volume" and no blast !.