During hot weather, I bring a cooler and clean the deer on the land that I hunt as soon as possible...I can pick up ice within 10 minutes of leaving the farm so I ice the deer down, add about a quart of vinegar when I get home...

Now, I let the deer soak for 4-7 days and drain off the water every day and add ice, I'll add vinegar for 3-4 days and then drain it off and rinse...This is one of those things we did with squirrels back in the 60s, seems to help both pull the blood out a bit and tenderize the meat...