Express sights have provem to me to be the most accurate Open sights yet. I have easily been able to hold my 14 bore rifle inside 1-1/2" at 100 meters with them. Some 5 shto groups run as small as 1.2". This is a muzzleloading rifle as well.
: Bonanza - your ballistics duplicate my brother's 250gr. load in his M94 big Bore .356 guide rifle. He's dropped previously wounded moose out to 210 yards with it. The big bullets are surprising killers of game.