Being an antique ammo collector that Herters stuff is what we look for. Not rare but unusual and makes a great display and conversation piece. I would not shoot it, instead store it away for a time when no other ammo is available. To just shoot up ammo like that is akin to fingernails on a blackboard to us collectors.
Best not come around here then! I recently broke down a full box of Rem-UMC .25-20 single shot ammo for the brass. I would break down that Herter's ammo for the brass too if I wanted it to feed a .300 Savage. Sorry, but there are times when "collectors" trip up we odd ducks who persist in keeping antique guns barking.
