Never hunted sharptails but my pheasant hunting is heavily pressured public access wild birds that more times than not get up at the edge of shotgun range. I've settled on nickle plated 5's in both the 12 and 16 gauges. I load 1 1/8 oz at around 1240 fps in the 16 and it hits pretty hard. Cheesy tried his 100 year old German SxS last fall so I loaded some 1 oz 5's at 1200 for him. He lucked into two 30 yard shots on the same pass through some CRP and was half way to his limit. I'm hearing that with all the flooding during nesting season this year I might as well carry a single shot 410 to make the hikes easier.