As SD Handgunner suggested, load date for the 309JDJ is available in many places now days and not just from JD.
As for "pet" loads, they need to be safely worked up in each particular barrel IMO, especially for wildcats, so I for one do not give mine out. Chambers vary between SSK made and TC factory re-chambered barrels (TC's custom shop does not offer the 309JDJ), and 309-444 barrels from other custom shops. So pet loads need to be worked up for each barrel.
I wasn't aware that JD favored any bullet weight in particular between 125-180 grains for the 309JDJ other than he does warn against using Barnes X, solid or copper tube type bullets without special loading techniques (ie loads) to keep pressures with them down. I handles them all well. So whatever bullet weight/configuration you think is right for your deer hunting situations should be fine, ie ranges shot, deer size, etc, and so needed downrange energy and performance.
The 309JDJ is not an overly hard recoiler, but does need a good scope to stand up to it. In my case on all of my JDJ handcannons I have always used my large supply of discontinued scope models that stand up to anything... Simmons Gold Medal Match 2-7 and the Tasco Pro Class 1.25-4, 4 and 6 have all been used with great success for many years. Also used a Burris 2-7 (200293) on one of my 309JDJ's for a few years with no problems. Now days folks seem to suggest the Bushnell Elite 3200 handgun scopes as strong enough for the 309, but an old Pro Class or Gold Medal is usually cheaper if you can find one and yet still have acceptable glass. A Pro Class 1.25-4 wore out one of my 375JDJ barrels and was still going strong on a second one when I sold it a couple of years ago. Glad I acquired a good supply of PC scopes while you could still find them (have several backups on the shelf).
The 309 is a fun barrel for deer hunting until you get your first 375JDJ. That one is the most fun to shoot of all the JDJ's IMO, and more than enough for anything you want to hunt.
L.