200 SST should open fast. I like the idea of the 210 Partition too, but we're talking deer here, and I can't see flinging big, tough, heavy bullets. Go as light as you can and up the speed. Velocity often helps. It could be that at moderate speed, these deer aren't offering enough resistance to the B-tips to get them to wound widely. If just doesn't seem right, hitting deer with all that metal and them running off!
