10mm Delta Gold Cup, 200 gr Nosler JHP over 800-X. The cow was about 50 yards out. First shot in the lungs she just stood there for a few seconds, then started to walk slowly. I pumped 1 more rounds into the lungs and she fell over. Recovered one bullet under the hide on the far side perfectly mushroomed and retained 182 gr or around 90% of the weight.
[Linked Image from i.imgur.com]