Does anyone have a jack russel tracker? What is their temperament. I'd like a dog like my whd that can jump in the truck without me picking it up!

Tedd, I have a JRT.  Trust me, they can jump in your truck, if not OVER it!

Best dog I've ever had and there's been many different breeds under my roof.

Should have mentioned that I never trained her to blood track, but, she's "got it bad" for squirrels.   No telling how many I've shot  over her.   She started treeing real naturally.  

Also, not a better mole killer that I know of.

My guess is with a little training they could follow up a deer for a guy.

Unfortunately my dapple dachshund passed away the year they made it legal to use tracking dogs in Utah so I was never able us use him. He had the best nose I've ever seen in a dog. He was abscessed with deer and elk and just about anything dead. He could fine anything even the lead from fired bullets. Funniest thing I ever seen was him retrieving ducks, kinda like a happy bobble headed dog swaying from side to side with his short legs. Too bad he never got his chance.  

I thought I had a challenge for Molly tonight. I shot a small doe in an overgrown creek bottom area where multiple little creeks and ditches come in. It's thickly brushed with a few walnut trees mixed in. The deer was standing in one of the few very small openings. she was broadside at 10 yards. I saw the arrow enter but could not see where it should have passed through and stuck in the dirt. I thought the arrow should easily pass through. This was low light and during a thick drizzle and heavy fog on ground that has been soaked for days.
At the shot the deer lunged forward and was instantly gone and made no sound of crashing off at all. Just silence. (bad ears).
I went for the dog and came back and put her on. Molly went harder than I ever saw her pull. She was on the deer in about 3 minutes or less! The dampness and terrain must have kept the smell where she needed it. Nice recovery. I would have found the deer but it would have taken about 20 minutes and I would have been soaked and full of briars.

The arrow was in the dirt right where it should have been I just couldn't see it from the tree stand. The fletching was heavily covered in blood. Blood trail was washing away quickly in the wet.
This time it worked out!