Practising with open irons will have your 'ethical' range extended somewhat. I agree though, that with practise, the .375 will stretch out and 1 blade is really all that's really needed. The extra leaves look Soooooo good, though.
: A Ruger #1, with it's cheap factory rear sight, once sighted to 100 meters, was an easy 6 for 6 on the steel ram at 300meters, standing, by holding the bead above the notch & on the ram and concentrating on the trigger's squeeze. We were shooting handloaded 300gr. RN's at 2,540fps.
: Even the rifle's owner was able to hit the ram repeatedly, once some practise was under his belt. It was an eye-opener for him as his hunting buddies had told him he HAD to have a 6x-9x scope to hit a moose's ribs.
: It's amazing what practise will do.
: I know of few people who actually practise with their "Back-Up irons. The best way to learn to shoot irons is to fore-go the scopes for a season or two and only shoot iron sights. A good set gives up some branch definition in the bush, but in fairly open bush and open areas, are a very effetive & fast sighting system.